Confused, helpless and now pregnant

Hi, I’m blue and this is a bit of a long story I’ll try to summarise but if you do read it I appreciate your time.

I met this guy 2 years ago while he was visiting my city for a week. He then left for an overseas holiday for 2 years and was coming back so he started messaging me again in May this year. He came back in August and we met up again and had sex which was a mutual decision. He then left again for another holiday however this time he blocked me on social media without explanation. A few weeks later I find out he was in a relationship this whole time but he never told me. I message his girlfriend telling her he had slept with me merely a month ago and she said he told her he cheated and she told him to block me on everything (which is fair).

But now I’ve missed my period and I’ve taken a pregnancy test and it came back positive. It was protected sex however there were moments of contact when the condom came off. I messaged her again because I have no way of contacting him and she’s very upset however she does not want any part of this situation. I have no way of contacting him so I really don’t know what to do... I don’t want to be pregnant especially with his baby but I can’t afford an abortion let alone the expenses of having a baby. What do I do? I really am feeling helpless.