Boyfriend broke up with me while pregnant

i'm 11 weeks today, i haven't eaten in 3 days nor have i been sleep. also i just got into a rollover car crash today so.. im really going through it and need advice.

I been with my boyfriend for 3 years for the past few months it's been kind of ruff i don't trust him at all, and i always question him only because i know when he's not being honest. I felt he's been pulled away from me and stopped putting forth effort in our relationship when I still was. He broke up with me three days ago and i've been a wreck since.

He even left yesterday and went to a woman he works with house to sleep together with her... they work night shift together. I figured he was trying to talk to someone there because it was just a gut feeling...

i really want to be with him to raise my baby. i feel so alone and hurt. has anyone ever been through this??

He told me he don't feel the same about me anymore and he think i'm just too young to understand. i'm 19 he's 25.