Meat cravings !! But I'm vegetarian

I just wondered if anyone has experienced or is experiencing cravings for meat. I have been vegetarian for around 15 years and would never normally consider eating meat.. 
I'm now 23weeks pregnant and over the last 2 weeks I have been craving chicken, lamb etc.. My husband and the rest of my family all eat meat and it has never bothered me before. But I'm finding it really hard to resist.. I don't know what to do ;( my family are giving me a hard time saying 'baby needs meat - that why he is craving it' etc etc.. Is there anything anyone would recommend ?