He asked me to terminate at 14 weeks!

I’m seriously so lost right now I don’t even know if I can post this here but my whole world has been tipped upside down. He was so on board we spoke about marriage and finding an apartment together he introduced me to his friends and family and I did the same, we bought clothes and had names picked, he took me to all my appointments and we watched the baby get bigger and bigger and actually heard the heart beat last week. He mentioned that week that his mental health was declining and he’d need a therapist he was still dealing with trauma from his past relationships since a lot of things went on so he reached out to one but before he even had one season he told me on Monday that he can’t do this I either terminate the pregnancy and be with him or be a single mother and do this alone. He’s now removed me of his social media and isn’t replying to my text I’m trying so hard to stay strong and not fall into deep depression but it’s hard. I seriously don’t know what to do if I keep it I wouldn’t be able to support us as well as I could have with him and if I get terminate then I’d be left with nothing really I couldn’t see me still being with him.