Too much???

Ok ladies, so my baby is now almost three weeks old (on tuesday) my husband has been "taking care of himself" every other night since day 4 of us being home. Don't get me wrong I would love to have sex, and seeing as how I had a csection it can't be a bad thing other than aunt Flo. I find myself almost mad at him and honestly upset when I know he's going to take care of business. Is this wrong of me? Any advice on how to fix this?