11 weeks and 3 days pregnant super depressed

Hey guys , I'm 11 weeks and 3 days pregnant and sometimes I have depression problems. I'm single mother and trying to handle it as strong as I can and be positive about the whole situation but sometimes it's super hard I break down in tears crying. I come stay with the baby daddy sometimes but every time I come back I go through this depression stage because I feel like I love him but then again I feel like I'm being used for sex because he feels lonely I think ! He has another baby momma and 2 other kids and he never shows me so much attention has he shows her he is always on his phone talking to her but when I go home I barley here from him. I want to get out of this so bad but it's hard cause I'm scared to be pregnant alone this is my first child. I just want to be happy with my first baby.