vaginal opening issues?

So recently I've had a pregnancy scare going on so I've kept inserting a single finger to check my cervix and my cervical mucus and all of a sudden today my vaginal opening was super tight and closed up and when I pierced through I felt a terrible pain in my upper stomach and in my throat. Am I pregnant and I messed with my baby or am I just inflamed from bugging it so much? I also had protected sex yesterday and he fingered me a lot. Please help :(