Vaginal Sex hurts

So me and my guy love anal sex. We do it more than we ever have vaginal. I always want to do vaginal from time to time and today we did, but it hurts so much. It honestly feels like I'm being stabbed if he goes "too deep".

I don't know what's causing this but it hurts like heck. Does anyone know what this could be?

Today I even said I'd much rather have anal than anything up my vagina ever - yea, it hurts that bad.

Please help ladies! Maybe give me tips?