Husband feeling weird about sex?

Hey ladies I’m 4 weeks 2 days pregnant , we have been knowing for exactly a week , we were able to find out at about 9dpo . Ever since my husband has been feeling weird about having sex with me . He says he feels he might hurt the baby . This is my third child but it’s his first , I know there are no risks as long as you are not considered high risk . I’ve explained and showed him articles . Anyone else having this problem ? How are you dealing with it ? I guess I’m just nervous and hurt , and scared that when my belly gets big he definitely won’t want anything to do with me , sexually . Anyone else ? How are you dealing ? Thanks in advance ladies .