Postpartum sex

Is it normal to completely lose my sex drive after having a baby 13 months ago and a miscarriage 8 months ago? I literally have no sex drive at all. My husband and I have probably only had sex about 10 times in a year and I feel like an awful wife. Plus, I really, really want to enjoy sex- I used to have a crazy sex drive and I want it back. Should I be worried, see a doctor?!?!?! Help please!