Under these strange circumstances would it be possible to get pregnant?

[Morgan]

Im honestly not worried about getting or being pregnant i was just wondering under my particular circumstance if it is even something i should be relatively concerned about. My hormones have been put on a rollercoaster because i got my period a week early on the pill. i quit taking it for a couple days thinking that there was a reason why i got it in the first place. My bleeding has been very very off and on, i will bleed for a few days (this is going on week 3) and then i somehow stop bleeding when im with my boyfriend for a small window of time. Its really weird because when i'm not bleeding we have sex because all of a sudden i want it really bad, a few hours later i start bleeding again with a vengance then it gets really light. I have had sex with him roughly twice a week for 3 weeks and we havent used contraceptives other than birthcontrol. I have been in and out of the doctor because 1. i got my period early on the pill without missing a day 2. the bleeding hasn't completely stopped. I have also been prescribed weird dosages on the pill, for the first week my doctor had me take 2 pills a day to try and stop the bleeding, when this failed i took 3 a day for a few days, that didn't work so i was off of it for 4 days, and i restarted with a completely different pill on monday. So concidering these pills would that increase my chances of getting pregnant? I am just concerned that if i do get pregnant that something isn't going to be right with a possible baby because of these things going on in my body right now.