Any advice guys

So I’m 30 weeks pregnant and struggling mentally and have been for quite sometime my boyfriend works a lot and I have a two year old who I love to pieces but is very energetic and challenging at times. I can’t really speak to anyone about how I feel I just can’t be bothered with anything anymore I hate everything about myself and feel disconnected from the world I don’t know what to do.. I just broke a few nights ago and I hurt myself and now my bfs found out and he’s calling me selfish and saying I don’t care about anyone but myself so he doesn’t understand how I feel or that I’m trying so hard to be happy I just can’t be so today we had a huge argument over something so small but it got out of hand and he locked me in the house and wouldn’t let me leave he said he was doing it because he thought I’d hurt myself but he scared me and physically held me so I couldn’t leave he’s done this is the past but I guess I’m wondering in these circumstances was it the right thing to do

I’m so lost and I can’t see how things will ever get better

Has anyone ever been in this situation or have any sort of advice please!!