I’m pregnant but *warning not a light read*

I’m pregnant.. but I’ve just completely gone from excited to zero I feel nothing. I’m completely hurt over some rather personal matters and I don’t even feel like I should have this baby anymore. I just want to cry all the time because I feel like a horrible mother. My fiancé is so busy with his other child that it just feels like whatever with this one and I just want to have a good pregnancy that’s not me all in tears but all I can do is cry myself to sleep and be comatose most of the day. I feel like I’m at my ends wit and I want to run away from home.