Pregnancy scare

Hey y’all. So i’m really stressing out. So basically my last normal period was February 4-8th. I lost my virginity on February 10th, with a condom of course. I took a plan b the same day just to be safe. According to this app I ovulated the 15th-21st of February, but on those days i had another period. So i put that in the tracker and according to the app i ovulated February 26- March 3. I had protected sex again on February 29th and took another plan be about 48 hours after. I didn’t know at the time that i was already ovulating but we used protection anyways but i just wanted to be safe. I’m having very very light cramping and I don’t know if i’m pregnant. Should i be worried?