Nervous to wear a bathing suit in front of my bf

Hey everyone so i want to put it out there, I was never allowed to wear one and I’m older now and I decided I want to. I recently bought one and i thought it was cute, and when i tried it on at home i loved it! I know that i might not have the best body but I’m over it at this point :-) anyways my bf and I planned to go to the beach and I realized the closer we get to the day we planned the more self-conscious I’m getting! What the heck! He sees me naked all the time??? I don’t know what’s the problem ? Has anyone ever felt that?