To tell or not to tell *update*

I'm pregnant, 21 weeks. My partner of 4 years didn't want to be with me and told me so at 20 weeks. We are on speaking terms (when he answers his phone). I live with my wonderful supportive family, he lives with his family when he is home. His mom doesn't know about the breakup or pregnancy, he hasn't told her about the pregnancy (despite my urging since I found out). She just texted me asking if I knew where he was because he's probably been at friends houses and he doesn't let them know ever where he's going (which I've always disagreed with). Do I tell her that we broke up and that I'm pregnant? Just that we broke up? Or just pretend all is well? I'll also tell her that I actually don't know where he is, because I don't. He's had numerous chances to tell his parents about the baby but he's a chicken. What do I do? I'd love to have his parents in my baby's life even if he isn't adult enough to be (he's 22). But I also don't want to start shit that isn't mine to trifle with.

*excuse the possible run on sentences, I'm jittery and very tired*

**also this isn't the first time his mom has asked me if I knew where he was. This is a frequent situation that I've told him I hate to be in**

I was terrified but I did it!!! His mom called me immediately despite it being midnight and told me she loves me and supports me. I'm so grateful that besides the situation, I've got almost everyone I thought I'd have with me. I've got this and I'm happy that my little guy will know his grandparents. His mom was very apologetic about his behavior and is intending to talk to him about everything. I hope he gets the support he needs even if he doesn't want it right away. I don't know if I want to be with him after everything (unless he can change) but I would like my child to know his father. Let's hope he doesn't get pissed (though he is normally not an aggressive person). I feel relieved, thank you all for cheering me on. It was the first step I've taken as a parent to better my child's life.