Plan B and second period late

So I had Sex Nov 22nd and took a plan b that very day (2-3 hrs after unprotected sex). I later realized that I was ovulating and it cancels the use of Plan b since it should stop ovulation. My period came 2 days early 11 days later on the 3rd of December Was a weird period for 2-3 days. I just spotted the 3rd day. My periods only lasts 3-4 days. So I decided to take a pregnancy test since I thought it might be implantation bleeding on the 15 th of Dec and it was negative. I was supposed to get my period Jan 2nd. I took pregnancy tests again Jan 6th, 12th and 16th. They were all negative. I took two different ones the 12th. I used cheap and expensive ones. my periods are irregular btw. But I am on my 48 day cycle as of Jan 19th. I’ve been getting pms symptoms like cramping and all. I took a test the 16th because i thought It was going to come. i was cramping so bad but nope. Idk what to do 🤦🏾‍♀️🤦🏾‍♀️