I need y'all to be blunt with me PLEASE 😬

My husband and I have been trying for 2 years now. I have a 5 year old from a previous relationship but her biological dad is not in the picture so my husband is her only father figure. Well I have really always loved how our family is now and have never really been sure if I wanted to add another child. Don't get me wrong if I became pregnant, I'd love the child. But it's almost like I feel obligated to have his child because we haven't had a baby together. He really wants a baby.. but after trying for two years; I've learned to be happy with what I have now and I kinda want it to stay this way 😬😬 opinions please