eyes closed

So I've noticed allot lately that when we have sex my husband keeps his eyes closed most of the time.. Idk if I'm just noticing it for the first time or if it's a recent development.. it kind of makes me feel self conscious.... I don't want to bring it up to him because i fear he will just brush it off.. am I being overly hormonal or what?? gotta love TTC, when you're noticing EVERYTHING...