Alone 😢😢😢 & In Need Of Encouraging Words &/Or Advice

So to try to make a long story short I was with my ex for almost 5 years & in those 5 years we talked about babies & even started planning a wedding then things went sour we broke up & lost our apartment. Through all the bullshit he put me through I stood by him as his friend. I got back on the pill after I found out the first time I wasn't pregnant but when I went to the doctor they put me on prenatals because I hadn't missed my period yet so it might have been too early but my period came on so I got back on the pill but still took the prenatals because I didn't see any harm & I wanted my hair to grow more lol but we had sex a lot & were working on things to make it better & I got pregnant. I'm currently 6 weeks exactly as of today & the man who told me he would always be there for me who I was with for almost 5 years before things went sour & even went as far as planning to get pregnant but then I found out I wasn't but now wants nothing to do with me or my child & is doing everything mean & disrespectful to get me to get an abortion. I'm keeping the baby & I have blocked him from contacting me. Has anyone else been through this before? Does it change or should I just fully accept that I'm going to be a single mother with my first child? I don't know if he's scared or if he is really serious about how he's acting because Halloween is the 1 year anniversary of his brother's death so I'm not sure if that plays a part or not but I'm not putting the blame on his brother because this might just be how he really feels........😢😢😢😢