What should I do?

Samantha

I’m already 10 weeks pregnant and the baby’s father said he’ll financially support me but that he doesn’t want to be part of the babies life. I’ve talk to a couple of my friends and they said his mom, the baby’s grandmother, has the right to know and I think she does but I don’t know when or how to tell her. I’ve told her I needed to talk to her but then I backed out, I just don’t know what to do and it’s hard cause I’m 15 and he’s 17, we’re both so young.