PLEASE HELP IM DESPERATE

Ok story time. so my last actual period was the 27-31 of January and so February 1 my boyfriend and I fucked and the condom broke so we got the plan B and I took it literally 35 minutes later.

Then February 7- 11 I started spotting which is normal from what I’ve read but it kinda felt and looked like it was my period but really light idkk

And so my dumb ass self fucked him the 14 and the 15 (we used a Condom for both nights) and it didn’t break but like shit could happen ya know and I’m also NOT on birth control!!

But anyways so I was supposed to get my period the 22 of February right? If my last actual period was the 31 of January? (I have like 22 days between my periods)

I haven’t fucked him since but I still didn’t get my period and it’s currently March 4 !!!

Nothing is hurting and I’m realllly fucking stressed out I’m under 18 btw

PLEASE HELP WHAT DO I DO!!

I DONT want to be pregnant!!