Sex during pregnancy

So ever since we found out, my sex drive has been low but for the sake of my husbands sex drive, I agree to have sex Atleast once a week... but the problem is.. I’m so dry cuz i just can’t get turned on any suggestions to get turned on? Any pregnancy safe lube? Also what’s a good position for pregnancy? sex has gotten so uncomfortable because of the symptoms and bump so I need suggestionsssssss