Burning? Help!

I'm about 26 weeks pregnant and just recently when I have intercourse it gets swollen, burns, and really hurts to urinate afterwards. Its also slightly itchy. (Tmi) I'm sorry. I haven't yet made an appointment to get checked for uti's or yeast infections but has anyone else had his happen to them? The burning slows down in about an hour or 2 but the swollen feeling is still there along with very very mild itching.