Vagina hurts when I have sex now

Hi you guys

I’ve been having sex with my bf perfectly fine but these past 2 weeks

I feel like something ripped inside I did stop having sex for the 2 weeks

and tried to resume and do it again to see if I’m better but I’m only able to get the penis so far in with out it feel like hell

Fist = fake vagina

(Make a fist and stick your finger in let say I can’t get past the 1 finger the second one would start hurting)

I’m going to the doctor today but does anybody know what going on or have been there a similar situation?