Any ideas?

Okay ladies, so here's my situation. About a week and a half ago I went to get a new bra because I wore my other one out, and I got a 38D, then about 4 days later on the 6th I took a pregnancy test just for fun because my SO and I were only intimate 2 in September because we were sick, and it was a faint positive. Then since then I have taken 2 more and they are faint positives as well. Then yesterday I noticed that my breasts are about to fall out of my bra I just got and my stomach is really bloated. I just don't know if I believe that I could be pregnant because on the 7th I started a light steady bleed. Not like my normal af or anything, but like I did with my first pregnancy. Any thoughts would be helpful! TIA