Sex drive and husband

Gabriella
I'm 28 days late (never happened before except with my first pregnancy) and the only sign I have is no sex drive !!!!! All I want to do is get in bed and sleep at night or just relax until I fall asleep. 
I was even wondering if I should tell my husband that I'm not in the mood to have sex anymore! I'm afraid he thinks I'm no longer attracted to him or love him or even think that I'm cheating! 😫