so paranoid decided to not get my shot Feb second so I can lose weight ,me and my kids dad had sex…

so paranoid decided to not get my shot Feb second so I can lose weight ,me and my kids dad had sex before we got in a huge argument that led to me kicking him out(now working on bettering things) so that was 2 days before my shot was due ,but now I just feel all sorts of pregnancy(nauseous )/pms(achy uterus/cramping symptoms (haven't done anything sense),and I'm hoping I'm just a paranoid mess because ,I can't have a baby right now my focus is getting done with school in 5 months and obviously the 3 I have now and losing this baby weight,deff would not be ideal situation at all... I'll seriously run away my life situation right now I'd feel embarrassed and guilty /scared if I were to be ,I want to test but don't want to because I don't want to know. ..