Sooooo I’m hella scared

Aly

So I got my period on January 22-27. my boyfriend and I had unprotected sex on the 28th and I took plan B on the 29th. I then had what seemed to be another period (pretty sure bc of the pill) from February 3-8. I didn’t get my period in March and I’m kinda worried. I’d also like to add that I’ve been smoking pot a lot more so can that affect it? Pls help thank you