Depressed at 18 weeks

It’s been a rough couple weeks and I’m having a hard time holding on. Lost my grandma a week ago, she was more like my mother, raised me, cared for me, lived with me, and taught me everything I know. It’s been a huge loss. A few days after she died my father in law was diagnosed with cancer so my hubby is getting ready to leave half way around the world to be with him. And we just arrived from his parents home 2 weeks ago! My mums family came in from the funeral and have been so hard on me, getting angry, yelling on me, .. my own brother is tellin horrible untruths about me to have the family side with him. We are all adults but it seems now I’m just too week to handle them. I am currently staying in my parents basement. Age 37 with my first baby. My baby is high risk and there have been complications with my pregnancy. I’m at a loss, feel like I’m sinking. I feel like I’m hurting my little one growing inside. I’ve cried a lot, haven’t smiled or laughed since I’ve been in town. I’ve had fertility issues since I’ve been married (5yrs) and this baby is so important to me. Anyone have a hug for me? Just help me snap out of this.