Why You May Spot During Ovulation

If you notice light bleeding smack in the middle of your menstrual cycle, it can be confusing (and, frankly, annoying). Your period isn’t due for weeks. So, what gives?

It may be that you’re ovulating. And for about 8% of women, ovulation can come with some spotting.

We talked to women’s health specialist Dawn Raffin, CNP, about ovulation bleeding. Why does it happen? And what does it mean?

What causes bleeding during ovulation?

Ovulation spotting happens because of normal hormonal changes during your menstrual cycle. It’s relatively common and not a sign that anything is “wrong.”

Around the middle of your cycle, your ovary releases an egg. That’s called ovulation, and it’s your most fertile time. It also signals a shift in your hormones.

“Estrogen drops just after ovulation, and for some women, that brings on some light bleeding as a small amount of your uterine lining sheds,” Raffin explains. “Most of the time, ovulation spotting lasts just a day or two and is very light.”

Spotting from ovulation typically occurs around the midpoint of your cycle. In a 28-day cycle, ovulation usually happens around day 14 — that is, 14 days after the first day of your last period.

Of course, not everyone follows that textbook 28-day cycle. Some women have cycles that are closer together or farther apart. Generally, ovulation happens about halfway between the start of one period and the start of the next.

What does ovulation spotting look like?

Ovulation spotting is typically much lighter than your period.

You might notice:

• A small amount of blood when wiping
• A few drops on a panty liner
• Very light staining on your underwear

“It’s usually not enough for a tampon and often just shows up as a bit of blood in your underwear or some blood when you wipe,” Raffin says.

As for color, it can range, depending on how quickly the blood leaves your body.

“Generally, ovulation spotting is lighter in color — often pink or light red,” she adds, though it may occasionally appear brown.

Ovulation spotting and your fertility

Spotting when you ovulate doesn’t affect your fertility. And whether you experience it or not doesn’t affect the likelihood that you’ll get pregnant.

But if you tend to spot mid-cycle, it may signal that you’re ovulating — a helpful cue if you’re trying to conceive.

Ovulation spotting vs. implantation bleeding

It can be easy to confuse ovulation spotting with implantation bleeding. That’s light bleeding that can happen early in a pregnancy when a fertilized egg attaches to your uterine lining.

Timing can be a clue into which you’re dealing with.

Ovulation spotting usually occurs in the middle of your cycle. Implantation bleeding happens about 10 to 14 days after you ovulate, which is around the time you’d expect your next period.

In either case, the bleeding should be very light and not last longer than a day or two.

Timing and duration

If you have ovulation spotting, you may notice it every cycle. Or it may happen some months but not others.

Interestingly, it may show up every other cycle.

“You tend to release eggs from alternating ovaries — your left one cycle and your right the next,” Raffin shares. “It flip-flops each cycle. Some women notice spotting when they’re ovulating on one side but not the other.”

When to see a doctor

If you’re bleeding or spotting unexpectedly, seeing a healthcare provider is always recommended. If they determine that it’s ovulation spotting, it usually isn’t anything more than an inconvenience.

But if mid-cycle bleeding is new or unexplained, it’s important to get it checked out.

“If it hasn’t been assessed before and you’re having irregular bleeding, it really should be evaluated,” Raffin advises.

That’s because bleeding between periods can sometimes be linked to other conditions, such as:

• Infections (including STIs, yeast infections or bacterial vaginosis)
• Cervical or uterine polyps
• Issues with your uterine lining

Most of the time, the cause turns out to be harmless. But seeing a healthcare provider can help rule out other possibilities and give you peace of mind.

In the meantime, tracking when spotting happens in your cycle can help you and your provider better understand what’s going on.