Normal?

So I’m 36 weeks. And I feel like my labia is swollen and tender. Hubby was away for a month and we finally got to have sex. I was looking forward to it but uh huh, it was uncomfortable for me and kinda hurt. Hospital is closed Monday and I’d have to wait until Tuesday or Wednesday to come in to register at the hospital in the area I just moved to. Idk, I’m worried something is wrong. Any ideas what it could be?