SO says my vagina feels different...

Ashley • Mommy to a beautiful baby girl born May 26th! Second beautiful girl born April 30th! 💜💜 #girlmom
I am currently on my TWW AF due 1/7. Last night when we were having sex my SO said that it feels different. Like spongier and has more resistance once he got closer to my cervix... anyone else's SO ever say this?