I need advice !

My husband and I are both 22 with a 3 year old together. We have always talked about having more kids and agreed upon that decision prior to marriage because it’s so important to me. we recently had an unplanned pregnancy that ended in a miscarriage in January. I have been so excited about trying again but here recently he says he doesn’t want anymore babies. I am so sad and devastated and just need advice to help me feel better about the situation.