I was on birthcontrol everyday for one month before my boyfriend came inside me. The first time he did was August 13th. Before and after that we used condoms or he pulled out. On the morning of August 14th I took a Plan B pill to be extra sure, even tho I had taken my birth control pill every day and on time. After that, on August 17th I had sex again and he pulled out and haven't had sex since. On September 3rd, I got a period and it seemed to be normal. After that period, I did not open a new pill pack or take any more birth control pills at all. I have not had a period since. I had a little bit of spotting last week but that's absolutely it. Is it to do with the birth control/plan B or could I be pregnant? I haven't tested or anything because I don't feel like I am but I just wanted to see what y'all thought. What do you think is going on?