Can I be pregnant ??

Maria

So I had sex with my boyfriend at 5 weeks postpartum doctor had cleared me ! We did it unprotected but he pulled out i know I could of still got pregnant!! then we did it a Second time after I got on birth control and took plan b the same night ! then we did it a week and 1 day after I got the depo shot , I had some cramping today and like brown black discharge ?? And I noticed I’ve been having a lot of vagina farts to !! What could it be I’m going to call my doctor tomorrow to get checked ! I’m having minor cramps I’m currently breastfeeding also