Single mother advice UK

Hi ladies, I have found out I’m 4 weeks pregnant from the guy I’m dating. The baby father was okay with the pregnancy and with keeping the baby but for the last 3 days he has been ignoring me on the phone. I can see what’s next... So I’m just trying to plan in advance how would be to be a single mother in the UK. I don’t have a great job, I work for agency and I live in a rented room. No family, not much friends. I’m not from the UK.

Could anyone tell me how could I do this by myself? If it is possible and how could I get some help?

I need to have a second plan, just in case this guy runs away... Thanks for the help