S.B.
Feed your baby and dash out for a while. Your husband can look after things. Your baby is 2 months old so you know approximately how many hours she goes in between feedings. You should have plenty of time for a half hour massage or a mani/pedi. One thing I always loved was going to a hair salon. Not so much for a hair cut, but I love laying back and getting my hair washed. To me, that is so relaxing. Get your hair trimmed, dried and styled, go back home looking beautiful and feeling great.
You deserve it!
Go out with a girlfriend for a bite to eat or just take the time to pamper just yourself.
I don't want to sound mean, but you don't have to take the baby with you. It's possible for her to be fed and happy and sleep and not even know you are gone for a couple of hours.
It won't hurt either one of you.
Treat yourself. Recharge your batteries. Take care of YOU so you can take care of everyone else.
Best wishes!