I need some advice

We had a miscarriage in September I’m already working 3 jobs I have an 8year old son I’m also raising on my own I don’t know how I’m going to do this again by myself I’m terrified I was promised love compassion and a family and now he wants nothing to do with the baby what so ever how can someone say they love you hold your belly then tell you to terminate the next because the relationship didn’t work I’m just sick like is it even possible to do this should I bring another child into this world with out a father like I’m just so lost and broken