Me and my husband just got married a month ago. He has one daughter from a previous marriage and I have a son and a daughter from a previous relationship. He is in his low 30's and I'm in my late 20's. We would love to have another baby that would be the binding factor for our families. When we tell people we are trying for number 4 they look at us as if we are wrong in doing so. I suffered a miscarriage 2 years ago and have been unsuccessful in conceiving ever since. Any tips?