I feel so different

Dedwards
I'm 6wk+5 and last night was the first time in that my husband and I tried to have sex since we found out we are expecting. not for any real reason, other than I've been so tired. I was still tired last night, but I wanted to do it for him. It was so weird. Everything felt so different. I almost felt like I was in someone else's body. I wasn't enjoying myself one bit, and then I got a big wave of hormonal mood swings, and started crying.  My sweet husband felt so terrible we ended up cuddling till I fell asleep. 
He is so confused, as am I. I don't know what to do. Is anyone else in the same boat?