Insecure partner

Zayda
Ever since we found out I was pregnant, my husband has gotten very insecure. At first it was about something bad happening to me during the pregnancy or the birth. Now, he's insecure about my past relationships among other things and I'm not really sure why - I have never cheated on him or given him a reason to be insecure. Has anyone else experienced this and how did you cope? It seems like nothing I do is helping and I'm just making it worse. I'm ready to ask him for some space. Please help