what can I do to help my husbands low sex drive

he has no problem getting hard, he just isnt really interested in initiating sex. Ive offered him dick massages which normally make him weak at the knees. During sex it takes him longer to finish and gets tired and seems bored nomatter how I try to switch it up. Things have went like this since I started to show and have a bump😓 i feel so ugly and undesirable.