Okay so I have a long story. I'm 17 years old an I've been on birth control for about three months now. Me and my partner have sex often and never use a condom(I know I'm stupid) and he always pulls out. Well this month I decided to skip my period and so a couple days before my period started I started having this light brown discharge and then during the week my period was due I kept having this light brown discharge and plus my belly looks a little more swollen then usual and then today I was sitting on my bed when I felt something went down there and when I went to the bathroom to check there was dark red blood on my panties. So my question is, is all these symptoms happening because I didn't take my placebo pills and skipped my period and this is just my body getting rid of some blood? Or could these be signs of pregnancy? Please help I'm really freaked out by all this and I could use some answers..