I feel so lonely

Hey guys, I'm 17wks pregnant and it's been far from a dream. Overall my pregnancy isn't horrible, but the outside factors just have me feeling down. My SO and I are not really in the best place right now, so i don't have his emotional or physical support. My mother has all of a sudden turned a new leaf and isn't really here for me either. Which i am happy that she is finally out of her depression (my dad passed 5yrs ago) and moving forward with her life, but she knows that my SO is not here for me like he should be and i just feel like i have absolutely no support. I do everything by myself, drs appointment, taking care of our other 2 children, i literally feel like no one cares about my well being or my feelings. I find it hard to look forward to the next day and just really wish that i had someone who cared. I do not have any social media accounts, so this is the only outlet that i have access to. I'm trying really hard to not sink into depression but I'm literally alone. I'm not even excited about having this baby anymore, I'm blessed that God is allowing me to have another child but it's not fair that I have to go through this by myself. 😔