I need your opinion! Sort of long.

So about a week and a half ago I went and bought a new bra which was a 38D and it fit perfectly. I noticed yesterday that the girls are falling out of it and my stomach is getting big? on the 6th I decided to take a pregnancy test just out of curiosity thinking there was no way I could be pregnant because we only Bd 2 in September due to sickness and it was a faint positive. Then on the 7th I started having some light bleeding, which I had with my first healthy pregnancy, but I convinced myself that the test was wrong on the 6th. Took another on the 8th and still faint positive. So I have taken 3 tests all positives and still not sure what's going on or if I believe it. Any ideas? Here's a pic of my stomach and test