Lonely pregnancy

I’m 20 weeks pregnant and I’m super lonely I’m currently living with and dating the father of my child but he works a lot , my parents are reliable so I can’t even go over their house or hang out with them when I feel this way , I’m not close to my sisters and for some reason once you become pregnant the less people who want to hang out , I work at home so it’s been just me and the plain white walls in this house no one to talk with or vent to , I’m over whelmed and can’t even express it to anyone , I’ve never felt so alone