Question: What causes spotting during ovulation? Can midcycle ovulation bleeding be heavy and come with thick blood clots?
After the end of your menstrual period, your body begins to change in preparation for the subsequent release of one or more eggs from your ovaries (ovulation).
These changes occur because your hormones (estrogen and progesterone) rise and fall. Ovulation means the release of a mature and developed egg from your ovaries into the fallopian tube. If this occurs and there is a waiting sperm after sex, you can get pregnant.
Most women between puberty and menopause will experience ovulation in many of their menstrual cycles, and most times, there won’t be any scary symptom. Common symptoms experienced during ovulation period is stretchy vaginal discharge, breast pain, increase sexual desire and high soft cervix.
Occasionally, about 20 percent of women will also experience a sharp, stabbing, left or right abdominal pain while ovulating (called mittelschmerz). Then again, you could experience spotting during ovulation, and the truth is, for many women it’s not abnormal. Light mid-cycle spotting related to ovulation is usually harmless as long as it is short-lived and not heavy. Medical News Today+1
If you are expecting ovulation and notice light vaginal bleeding, you are not alone. Here’s an email I received from Samantha (one of my readers):
Hi doctor Dunn
I am encountering light vaginal bleeding between my periods with cramps just like menstrual cramps. On day 13 of my menstrual cycle (usually, I get ovulation on day 14 or 15), I noticed bright red bleeding from my vagina. Surprisingly, 2 days after I am still bleeding.
Blood is dark brown today and mixed with my vaginal discharge. I suppose this could mean something serious and need help before seeing my doctor. Please reply.
Just like Samantha, if you experience bleeding during your ovulation period, you may be scared. But the truth is, it can still be normal for some women and occurs because of a small fall in estrogen just before ovulation. Glowm+1
However, it’s crucial you observe for any abnormal signs. If you experience severe cramps and heavy vaginal bleeding, it may be something else. Other reasons for spotting between your menstrual period are medications (birth control pills), problems with the lining of the womb (endometrium), vaginal infections, pelvic inflammatory disease, pregnancy-related problems, bleeding disorders, cancer of the cervix, fibroids, and uterine polyps. MedlinePlus
This article explains why you experience bleeding during ovulation, other symptoms to easily recognize ovulation, and when to worry about a serious health concern.
What causes midcycle spotting during ovulation?
Hormonal factors are the main reason you will have spotting during ovulation. And while you may panic and quickly want to see a doctor, it’s important you know that light, brief spotting around ovulation is often not something serious.
On the first day of your period, estrogen hormone is at its lowest level. Towards the end of your period, your body, through the action of follicle stimulating hormone, stimulates follicles (at your ovaries) to increase in size till only one follicle becomes mature and contains a well-developed egg.
This mature follicle secretes estrogen hormones, and because of this, there is a spike in levels of estrogen after your period ends.
Simply put, estrogen helps increase the thickness of the uterine endometrium. Your endometrium is a soft, blood-rich layer that carpets the inside of your womb. In fact, when you have your period, the endometrium is what is actually being washed out from your womb.
After this spike in estrogen, your body undergoes another change, with subsequent rise in another hormone, luteinizing hormone, and a small fall in estrogen.
Because estrogen helps stabilize the uterine endometrium, if its level falls right before or around ovulation, it can cause a slightly unstable endometrium with mild bleeding (spotting). Glowm+1
Is spotting before ovulation normal?
It’s common for women who experience ovulation spotting to think it is occurring during ovulation. But the truth is, ovulation spotting and estrogen fall usually happen shortly before or around ovulation, not days afterwards.
This implies that, if you are spotting and it is light and only lasts a day or two, it’s likely occurring close to ovulation. Medical News Today+1
Is spotting after ovulation possible?
There are many reasons a woman will have spotting after ovulation (as discussed later in this article). But if you are bleeding after ovulation and it is light, short and not painful, it can still be harmless.
The truth is, ovulation bleeding is bright red or dark and can exit the vagina before, during and shortly after ovulation. In fact, after ovulation has occurred, it’s not abnormal if a small amount of blood is black or dark because it is older blood.
If spotting after ovulation keeps happening every cycle, becomes heavier, or is associated with pain or pain after sex, then it should be checked as abnormal uterine bleeding. ACOG+2MedlinePlus+2
How can I be sure it’s ovulation happening?
There are other ways to tell if you are ovulating and there are more reliable signs you should watch out for. Here are other ovulation signs and symptoms:
It’s common for some women to feel wet down there while in their ovulation period. This occurs because of the initial spike in the level of estrogen hormone.
Estrogen causes your vaginal discharge to change into a stretchy, egg-like milky or creamy discharge just before and during ovulation.
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Abdominal cramps and back pain
20 percent of women experience belly cramps and back pain during ovulation. So, if you are spotting with back pain, it could be ovulation.
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Increased libido
During your ovulation period, you may experience an increased urge to have intercourse with your partner.
If you’ve been monitoring your cervical positions, just before and during ovulation, your cervix entirely disappears or remains high in your vagina and soft.
What does ovulation spotting look like?
If you are experiencing bleeding during ovulation for the first time it’s important you know what’s normal and what’s not. Ovulation bleeding is bright red or pink blood from your vagina that is light (just a few spots on your pad or tissue). Ovulation spotting typically lasts one or two days at most. Natural Cycles+1
Rarely, you may have heavier bleeding, but it’s important you see a doctor if this happens.
Dark red bleeding or discharge after ovulation is not abnormal if it is scanty. This occurs because blood gets concentrated and loses oxygen, making your blood dark in color.
How long does ovulation bleeding last?
Ovulation spotting that happens in some women will only last for a few days. In fact, most women will just have to bleed for 1 or 2 days. Natural Cycles+1
If you are spotting heavily, passing clots, or bleeding for a week, see your doctor for help ASAP, as this may be a sign of abnormal uterine bleeding that needs evaluation. ACOG+2NICE+2
Ovulation bleeding and getting pregnant
If you are trying to conceive, spotting during your ovulation period can be a way to tell if you are in your fertile period.
It’s essential you also check for some of the signs listed above (watery discharge, increased libido, breast pain, high soft cervix).
This guide thoroughly explains your fertile mucus and fertile window.
Light bleeding during ovulation – am I pregnant?
If you are worried about your fertility and getting pregnant, it’s important to distinguish pregnancy signs from ovulation signs. Here is a comparison of ovulation bleeding vs implantation bleeding.
Ovulation bleeding vs implantation bleeding
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Bleeding during ovulation occurs after your period has ended. In many women with a 28-day cycle, a normal period will last for about 5 days, and then, around the middle of the cycle (about day 14), ovulation and possible ovulation spotting will occur. However, pregnancy bleeding (implantation bleeding) will usually occur closer to when your next period is due. Cleveland Clinic
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Ovulation bleeding happens before and during ovulation while implantation bleeding usually takes place about 10–14 days after ovulation, when a fertilized egg is attaching to the womb.
Also, other reasons of light spotting in between your periods are birth control pills, vaginal infections, pelvic inflammatory disease and sexually transmitted infections, early miscarriage, and ectopic pregnancy. If you could be pregnant and have pain or bleeding, always test for pregnancy and see your doctor. MedlinePlus
If you want to read more about implantation bleeding specifically, a good patient-friendly resource is the Cleveland Clinic guide: https://my.clevelandclinic.org/health/symptoms/24536-implantation-bleeding Cleveland Clinic
Heavy bleeding during ovulation – is it normal?
If you are in your ovulation period and experience a heavy vaginal bleeding, it’s important you see your doctor.
Possible reasons are uterine fibroids, copper or hormonal IUDs, uterine polyps, endometrial cancer, cervical cancer, hormonal problems, blood clotting disorders and pregnancy-related issues. Doctors call this pattern abnormal uterine bleeding and will usually follow guidelines to decide which tests you need (for example, the NICE heavy menstrual bleeding guideline NG88 and ACOG guidance on abnormal uterine bleeding). Wikipedia+3ACOG+3NICE+3
When should I see a doctor or go to the hospital?
You should urgently see a doctor or go to the emergency room if:
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You are soaking through a pad or tampon every hour for several hours, or passing large clots. ACOG+
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You feel dizzy, weak, short of breath, or have chest pain.
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You have severe one-sided pelvic pain, pain after sex, or shoulder-tip pain (could be ectopic pregnancy). NCBI+1
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You are pregnant or think you could be pregnant and have any bleeding.
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You are over 40 and develop new mid-cycle bleeding or bleeding after sex. AAFP+1
Book a routine appointment with your doctor if:
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Midcycle spotting is new for you or keeps coming back every month.
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Bleeding between periods is associated with vaginal discharge, pain, or pain during sex.
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Your periods have become much heavier or last more than 7 days.
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You have a family history of fibroids, polyps, endometrial cancer or bleeding disorders. NCBI
Postpartum (after delivery) or after a miscarriage, your hormones and cycles can be irregular for a while. Any very heavy bleeding, foul-smelling discharge, or fever after childbirth or miscarriage is not normal midcycle spotting and must be checked quickly.
Worried about ovulation spotting color and flow? Ask the Medplux team!!!
Dr Akatakpo Dunn is a Nigerian medical doctor, sonologist and Medical Director of Verah Clinic & Maternity in Warri, Nigeria. He holds an MBBS from the University of Nigeria, Nsukka, a Postgraduate Diploma in Diagnostic Ultrasound (India) and a Professional Diploma in Obstetrics & Gynaecology (RCPI). Through Medplux, he explains women’s health, pregnancy, fertility and ultrasound in clear, practical language so readers can make informed decisions with their own doctors.
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