So I got my period on 6 February through the 10th… Had sex on the 14th unprotected withdrawal method with my boyfriend but he's not the greatest at it,  also again on the 18th, later that night on the 18th I want out to eat with a friend and use the bathroom when we were about to leave and I wiped a little bit of pink also saw alittle piece of my uterin lining it looked like in the toilet… It is now 2 March my period is due on the ninth according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a>, my cycles are around 29 to 30 days is it possible that I could be pregnant or do you think that it is ovulation bleeding which I have never experienced before..