Sperm can hang around in the fallopian tube for almost a week. It's also possible to ovulate without a visible period, and it's possible to ovulate in-between "normal" periods.
Don't assume any hard-and-fast rules when it comes to fertility, and definitely don't assume that somebody can only get pregnant two days out of the month. Our species would never have survived if that was really true.
Biology is messy, imprecise, and very subject to external effects.
Don't assume any hard-and-fast rules when it comes to fertility, and definitely don't assume that somebody can only get pregnant two days out of the month. Our species would never have survived if that was really true.
Biology is messy, imprecise, and very subject to external effects.