Hiding pregnancy help!

Merm
I'm around 7 weeks pregnant and my husband and I are going over to a friend's parents house for Easter dinner. Her dad is making steaks and his steaks are always AMAZING!!!!..... The issue is he always makes them medium to medium-rare and I can't eat any meat that isn't well done. I feel like it would be rude not to eat it but how can I go about this dinner without being suspicious since they've seen me eat the medium cooked steaks before. I'm not sure I'm ready for them to know about the pregnancy. Any advice?!