What a day

Ok I'm currently 5 weeks pregnant and I decided to finally tell my best friend we work at the same job anyway. When I told her there was a lady behind us I didn't pay much attention. When I told my friend I was pregnant she was very happy for and all that but the lady behind us was very rude and said children should be having babies (I'm 19 btw) and got all mad and said she should have gotten pregnant because she deserves a baby and not me and she was more of a woman then me. Idk did I do something wrong? Should I have not said anything in public or what? Sorry but it bummed me out