really in need of advice ☹️

I’m a month late to have my period. The last time I had it was end of November and I was expecting to have it again at the end of December or start of January. I’m usually late but I know I know that it should be either at the end of the month or the start of a brand new month. I had sex with my boyfriend 2 weeks ago and we used a condom the first time round but later on he went in raw. He pulled out in time however I knew that there was a possibility of pre cum being in me so to be on the safe side I took the morning after pill 26 hours later. I still have not got my period and its coming to two months of me not having it. Before I had sex with my boyfriend I stressed a lot about my exams and I’m aware that the stress and the pill can delay my period but I’m getting really concerned. I’m planning to take a pregnancy test next week but I just want to know if anyone has any idea to what could be happening to me or any tips on what else to do.

I keep reposting this over and over only because I need as much help as I can get 😭😭THANKSSS