I'm 31 weeks pregnant and I've tried to be healthy but feel like a failure. All I've wanted is sugar. Cakes and fat coke. My MW said one coke a day was ok but some days I've maybe had 2 cans. I'm on my feet a lot still with work and feel so exhausted but I'm worried I've done irreversible damage to the baby (I suffer with anxiety so cannot stop thinking about it). Has anyone else had similar cravings?