First time mommy body issues

I'm a first time mom I just had my son a month ago and it being summer time I want to go swimming so bad but I have crazy stretch marks and the baby weigh still..I know i should be proud of my body and have that confidence in my body but I just can't find that confidence I don't Want people to stare at me while I'm trying to enjoy myself this summer.. so has anyone had the same issue if so how did you deal with it ? ( I am eating healthy and working out but we all know it doesn't go away over night )