Going out with a new born?

I am about 2 1/2 weeks post partum; since I am able to do most things again, I ask my husband to take us out, so I don't feel all cooped up in the house. My mom is not very happy about it since she thinks I have to stay home for at least the first month, she has a list of what I can / can not do or eat (which most of them are superstitious or just old wife's tales), and since I had a C- section, she feels like I cant take a shower either. I don't do most of that. Does that means I'm wrong?