I found out my son isn’t mine. I don’t know how to feel.

It’s been 1 and a half years. I’ve raised that little boy like he’s my own. Swaddling, diaper changing, and waking up every couple hours. Life’s hard and I get that. But then I find out yesterday the his mother doesn’t believe he’s mine. I don’t know how to feel and I feel broken. I feel stupid, betrayed, like a complete dumbass. I don’t know how to move forward. I don’t know what to do. Please help via /r/Parenting https://ift.tt/2lGPVgp