Postpartum sex

Does your vagina feel loose at 4 kids? I had my 4th baby and I’m scared I am I can’t even enjoy sex with my partner because I think to much of it. We’ve only had sex twice I’m 5 weeks postpartum. I had my postpartum appointment at 4 weeks. He has “came” those two times we have and he hasn’t said anything about it but maybe I’m thinking too much of it.