Husband feels unwanted

This might be TMI, sorry!

Husband and I have a great relationship. I am 16 weeks pregnant and haven't felt great. I didnt have morning sickness but I am tired and my back is hurting and I get heartburn super bad. But its nothing I cant handle.

Anyway, sex has been the last thing on my mind. I have been slacking and I know it bothers him. Its not like we haven't had sex at all in 16 weeks. Its a few times a weeks (used to be everyday) and its making my husband feel "unwanted". That was his word by the way.

I wish he had a little more understanding.

I feel like just because I don't want sex at a certain time doesn't mean I don't want him.

Does this make sense? Anyone else getting the same thing from their spouse?