Bleeding during intercourse!
I am 18 years old I have 1 child he will be 2 in feb. well every time me and my boyfriend have sex like a week or so before my period I bleed like I'm on my period, so after sex I go to the bathroom and put a tampon in thinking that I started my period but when I wake up in the morning I'm not bleeding and there is no blood on the tampon(this has been happening for like a few months now) and it only happens when we have sex a week or less before my period....why is this, is this something I should be worried about, should I make an appointment with my obgyn??