Pregnancy test says not Pregnant. So wtf

So wtf is going on, I took plan b a month and a half ago and I got my period and all. Then I took it again this month because me and the boy I talk to we did you a condom but it broke at the last minute but he DID For sure pull out in time. So I went to my doctor 2 days after that to get on BC and I told her about my incident and she suggested to take the plan b again so I did. ( this was 2 weeks ago) I started my BC pill Sunday and I just feel fat and bloated. I figured I might be pregnant but I just had my period last Friday but it only lasted 3 days maybe because I know that plan b can make your period irregular. But my period did come a week early. But idk the test says I'm not pregnant but I just feel bloated and tired. I am freaking myself out.😒