Feeling completely unattractive and Reject it

Im almost 25 weeks pregnant my ex and i broke up when i was about 4 months along. This is our 3 son. We still live together but our lease is up in March. We've been together for going on 5 years we have a 4 year old and 1 year old son. He has really hurt me in the past but I was will to move forward and keep my family together. I feel like he doesn't want his family to work. I feel like I failed my boys and it keeps my heart. I just want to break down and cry all the time. I just feel like nobody will want me with all the baggage i have. I just don't know how to even start to move on.