Feeling unattractive to my husband

Rachel
Lately I feel my husband he unattractive to me some of the stuff he is saying to me. I never felt like this before with him. We have been together since we are 16 and married 5 months and have our second child in the way. I don't know if it's bc I'm pregnant or what. I'm 18weeks but you can't even tell I'm pregnant so it's not like I put wait on. I feel like he don't kiss me or have sex with me like he used too. We always txted n called each other from work n it's like we r 2 different ppl now. I love him with all my heart I just feel he is so distant n unattractive to me. I try to talk to him about it but I just feel dumb about it