URGENT PLEASE READ. Am I or am I not pregnant?

Thank you for reading this.

I was a 20 year old virgin up until this year. I now have a boyfriend and have been having sex. We had sex just using a condom but it was too small. I was very afraid by this so I took a plan b 2 days later because I was afraid that because the condom barely fit that the condom might have ripped a little and I wouldnt notice which would result in me getting pregnant. Ever since I knew we would have more sex though, especially using a condom I decided to be on birth control. Also, last month in January we had sex and the condom broke so I took plan B again. This scared me even more because for the whole entire month of January I had no period. I already do have irregular periods though, sometimes I skip my periods and in Novemeber I even had 2 periods in just one month. Though ever since then we have used condoms. But, on Saturaday and Sunday I had unprotected sex two days on my row, while on my period and the pill. Im freaking out because I am unable to get Plan B until this Tuesday.

(BTW: I have taken two pregnancy tests, one in late January and early February and they were negative)

However, Im not sure if the birth control is effective for me. This is because I have been a heavy Bulimic since March of last year. I often throw up multiple times a day, unless I fast, or eat within my low calorie goal limit. They have said that the birth control takes 2-3 hours to fully digest, but because of my body I am able to throw up food from over 7-8 hours ago. I also heard that it doesnt necessarily matter about what time you are taking the combination birth control pill, but as long as you take it you should be fine. Thats why if Im often late by 15-20 minutes or even 3-4 hours Im not too worried because I never forget to take it. But all in all, this is why I feel as though birth control isnt effective for me. Its because Im bulimic. And I often throw up 2-3 hours after taking it.

I also finished my 28 day birth control pack. However, I skipped the placebo week and went straight to regular birth control pill and something happened. I believe I got on my period. Like I’m actually on my period which makes no sense because youre supposed to get either “spotting” or a “lighter period during placebo week”, which is definitely not the case for me. I currently have a light period during the actual birth control pills. I did not skip any pills. I am not supposed to have my period. I was also worried because I know implantation bleeding is a thing, so now I am worried I am pregnant.

What do I do? What do you think based on my circumstnces?

STRESS can stop periods/make it longer/or shorter
if u took plan B & got negative pregnancy tests you’re not pregnant!

oh & also the pill makes irregular periods too! ive missed 3 months before

thank you(: