am I wrong for possibly wanting to end things?

I have been with my boyfriend for 3 years now and I am now 34 weeks pregnant. It breaks my heart to think of ending things but I feel I may not have a choice. He has not told anyone that we have a baby on the way not family or even his other kids. He has 3 other kids. I haven't been around his other kids for 2 years because of drama with his ex, that is a separate long story. But we decided together to try to have a baby and I thought that meant that he's ready for the change that comes with it and dealing with the drama that may come too. He let me be under this impression that things would change. I found a house for us that I have been paying for since he hasn't moved in. But that's the issue he led me to believe he would be living with me but I've been living here for a month by myself. It's a house that's big enough for his  3 kids the baby and us. But he doesn't show any motivation to move in. I wanted him to be here for the baby and for me since we decided to do this together I thought he wanted all that also, I want to be around his other kids and want them to know their baby sister. I only see him maybe 3 nights a week sometimes more or less depending on his kids. Nothing has changed since I became pregnant and fear it never will and I just feel I can't do it anymore, am I wrong? I've put up with this for 2 years now and with the baby on the way I feel things should be changing. I love him so much and don't want to end it but I feel I have no choice. 😕 not sure what else to do. I've changed my life for him and I've wanted to do it but thought that meant he was ready for the same. Can someone help give me a little advice?