Is it actually safe?
Generally, yes, for most people — there's no medical reason to avoid sex during your period beyond personal comfort or preference. One thing worth knowing: STI transmission risk is somewhat higher during menstruation, since blood can carry a higher viral load than other bodily fluids, so barrier protection matters at least as much as usual, not less. Some people also find increased blood flow to the pelvic area makes arousal and orgasm easier during this part of the cycle, not harder.
Dropping the two biggest myths
"You can't get pregnant on your period" is common and wrong — it's less likely depending on cycle length and ovulation timing, but not a reliable form of contraception on its own. "Period sex is unhygienic" is more about mess management than actual hygiene; a towel and a shower afterward handle the practical side just fine.
Practical logistics: dealing with the mess
A dark towel under you handles most of it without much thought. The shower is a genuinely popular option specifically for this — water washes away the practical concern in real time, and our shower sex section in the named positions glossary covers the setup basics. A tampon needs to come out before penetration; a menstrual cup or disc positioned correctly can sometimes stay in for external activities, but check your specific product's own guidance rather than assuming, since designs vary.
Positions that make it easier
Side-lying positions like spooning keep flow more contained by gravity than positions with the receiving partner flat on their back, and they're comfortable if cramping is also part of the picture that day. Standing or shower-adapted positions sidestep the sheets question entirely. Nothing here is a strict rule — it's about what makes cleanup simpler, not a requirement.