How to tell family SO dumped me,im pregnant

I'm 2 months pregnant and my SO of 2 years dumped me the day I told him I was pregnant,about a month ago.saying he doesn't wanna be a dad again and he doesn't wanna break his childrens hearts telling them he got someone else pregnant who is not thier mother..it hurts alot...but my family keeps asking about him...i don't know how or when to break this news.any suggestions?