sex while on period

Mollee
So I told my friend today that today was the last day of my period and she said, "oo so you and your hubby gonna be getting it on tonight!" And I replied "we still have sex when I'm on my period.." She thought that was so gross. So my question is, is it normal to have sex on your period? Cause I see no problem with it, but I just want thoughts from other women.