question about sex after birth

How long after giving birth were you able to have sex again? How long after did your doctor ok it or did you do it? Just curious; my man is always super horny after me giving birth and I'm missing sex as well, he's in the navy and I only see him months at a time, so I've always been kind of sex deprived lol. But of course I can't do anything however considering I gave birth a week ago lol. So I'm just curious, of course I am also going to see what my doctor says as well.