In-Laws Not Excited

This is my second pregnancy of which I'm 15 weeks pregnant; my husband and I already have a beautiful 13 month old baby boy. We told my parents who were over the moon happy, but my husbands side of the family and some friends don't seem too thrilled. Has anyone else experienced this? I want to cry all the time; I'm heartbroken. This baby was planned; due to medical reasons I was told to have any kids before 30 so that is why we chose to have two babies close together.