It is possible to have sexual intercourse during menstruation. It may even have a positive effect on your body and well-being; however, it may also pose certain risks if you ignore hygiene.

For some people, having sex during menstruation is not an option. Yet there are others who don’t want to skip their sexual activity and want to know whether it is OK to consider it.

The first days of the menstrual cycle are often accompanied by pain and discomfort, so ladies aren’t even thinking about sexual intercourse at this time. However, some women say that sexual intercourse during their period relieves cramping and makes them feel better. Indeed, during intercourse, your body releases endorphins that improve mood and oxytocin, which promote feelings of peace, attachment to your partner, and relaxation.

If the man doesn't have any psychological restrictions holding him back, there's no point in turning down an opportunity to have sex, especially given the fact that there are also some positive aspects to it.

What are the hazards?

During your period, the cervix is open and quite vulnerable for sexually transmitted infections. It is recommended to use barrier birth control, such as condoms, if you decide to have sexual intercourse during your period.  

Sex during your period is possible as long as you feel comfortable and follow all the necessary hygiene rules. It is a personal choice for every couple.

Sources:

Is It Safe to Have Sex During Your Period? Tips, Benefits, and Side Effects, healthline.com

Is it safe to have sex during menstruation, medicalnewstoday.com