Sex after vaginal delivery..

Here i am 6 weeks out and too terrified. Im worried my SO wont think it feels good anymore. I know everyone says your vagina pops back the way it was but i stuck a clean finger in there in the shower and it's not nearly as "tight" as it was. I also can feel my cervix and it feels SOO low. I know when we have sex his penis will hit it because its right there at the opening. What do i do?