Intimacy shut down (for me) while pregnant

My fiancé and I have been together nearly two years and we have always been very intimate (more than just sex). However, since I've been pregnant (and I'm only 14 weeks) my sex drive and emotions have been fully depleted. 😖  I am easily irritated, I can't stand the smell of him, I don't feel sexual at all, I cannot stand being touched or cuddled unless he is just touching my belly, I don't feel emotionally connected and I cried through the 3 or 4 times we've had sex because I felt so detached. 

 I feel like a wicked witch because I keep having to turn down moments with him, and I keep trying to explain it the best I can so that he understands it isn't him--everything is so different for me physically and emotionally (thanks hormones 😠) and I just keep hoping that wild sexdrive I always hear about with pregnant women comes around soon.

Edit: We have two cats and a dog and I have no issue being affectionate toward them... so I can snuggle with my cat but not my baby's father 😰 What is this mental barrier!!?