Single mama blues

My emotions are every where today. I have a son and im expecting my 2nd child. 1st trimester. My son's father broke up with me a week after finding out. It's just been a battle for weeks now. I keep my distance cuz some how he tries to push my buttons and hurt me every time we talk. Border line cruel to me. And when the fights start he won't let up. Its been a horrible few weeks. I'm so lonely and hurt beyond words.