Well personally, the period always crashed my libido. Most desire right before it, then boom, crash, just sleepy, hungry, or migraine when it started. So my answer would be “because I didn’t want to”.

Anatomically, the cervix is lowest during the menstruation, so you are more likely to bump it, but I am not sure how much of a difference that makes.

There is no safety reason not to have sex when you are on the period though - so if you both want to, go for it.

This thread needs more women.

Myths:

Women experience more pain from sex on their period.

Cramps are gonna happen regardless. The dopamine and endorphins released from sex can actually reduce the pain. But cervical trauma is probably going to feel way worse when your insides are already rebelling.

Women are more horny on their period.

There isn’t any evidence to support this, though individual women may vary. If there was a horny time of the month, it would make more sense if that lined up with ovulation, when pregnancy is more likely to occur.

The vagina is bleeding!

The “blood” is actually the shed lining of the uterus, escaping by way of vagina.

Get yourself a set of big, red beach towels for some carefree period sex and leave enough time for clean up. You haven’t lived until you’ve cave-painted the shower wall with your/your partner’s insides.

They totally can, it’s up to them.

I’ve done it many times. Makes little difference though it’s best done with lighter flow because it can get messy when heavy.

Now, whether a woman will want to have sex during menstruation might vary because it often comes with unpleasant physical side effects that may damper your libido.

It’s fine. Some people think it’s gross, but it’s harmless. I swim the red sea regularly. The worst thing that has ever happened was that I looked like I killed someone with my dick, but I think it’s funny

The strength of one’s period can make it extremely messy. My ex and I did it before she realized it was about to start and the room was dimly lit. She noticed something was weird, stopped for a moment, and turned on the lights. Looked like a murder scene, lol.

There’s no inherent risks (besides STIs but that’s a worry for sex in general), but she’ll have to remove any tampon or menstrual cup she’s using. https://www.healthline.com/health/womens-health/sex-during-periods You will also have to think about cleanup.

In my experience they’re more horny while on their period. Some of the most fun times I’ve had.

They can if they want. Many don’t like to because blood is messy and hard to clean, and/or are in pain (uterus hurts for some), but having sex during their period is not harmful by itself.

It’s considered taboo according to some religions, but there’s not really any practical or medical reasons, other than the ones already mentioned.

would you like to get fucked in an orifice that is currently bleeding?