Post partum sex

I have to post this anonymously because it’s such an awkward topic for me personally. I am 14 months pp, and as of late I’ve noticed a difference in sex and how it feels down there. I’ve been having sex since 6 weeks post partum and if didn’t feel exactly the same as before but it was still “tight”. But lately it is feeling a little extra roomy down there. Is this normal? Is anyone else experiencing this?! I feel like I’m driving myself mad thinking about it.