Embarrassing to ask tmi

Ever since we found out I was pregnant my husband doesn't want to do anything except me ontop, except once I was able to get doggy style out of him. He won't finger me or rub my clit and I've tried to reassure him that it's safe, and I told him that his penis is much bigger than his fingers and he's still unsure about it. Do any of you pregnant ladies have opinions on this? Or mommy's that have been pregnant? Thank you for the help