Sex or not? Help!

imo • 16, dancer, uk🇬🇧

So in the period log section, I don’t know what to put for the sex part because does sex mean sex, or penis and vagina? I know this app is used for fertility so I don’t know if it’s a pregnancy thing or if there’s something else to it but does it count if I had sex with a woman? What do you think I should put?