Weird feeling inside vag at 35+5?

I'm a curious about a weird feeling my husband and I experienced. During intercourse my husband said he noticed it felt different when entering me, so I decided to take a look and feel myself and there's definitely a new/weird feeling up there! When I felt inside, it feels like the walls of my vagina are more soft and pillowy and then once passed the pillow feeling, there's a round pillow-like wall that felt thin and freaked me out a little.

I've been feeling a lot of pressure in my pelvic area, but no bleeding or anything. I have woken up to a what I assume are Braxton Hicks contractions, but they only lasted an hour.

I'm just wondering if all of this is normal? In my last pregnancy, I did have varicose veins in the outer lips of my vagina, but this all feels/looks different than that did. I've never experienced these weird pillowy things before. Should we avoid intercourse because of it? It doesn't hurt me, it caught us off guard.