Partner left me

My boyfriend has left after arguments for days at a time. We recently moved in together and this is the third time he’s left. The first time, he left and returned after I begged him to. The second tome he left for 3 days. He left tonight and isn’t returning my calls, texts, anything. I don’t want someone who is going to walk in and out of the baby’s life. He also has been talking about suicide a lot lately and refuses to seek any help outside of his therapist, but she recently quit so now he doesn’t have one. I’m almost 17 weeks pregnant and at a complete loss. This all has happened over the last 4 weeks.

Support and advice welcome