Relationship with the half-brothers, easy or not?

Hey ladies, this is my fourth pregnancy and I have all girls. So half of me is like probably another girl but a lot of people are saying boy. It would be amazing to finally have my son. Baby is due the day of my brothers birthday and he passed on thanksgiving last year. Anyway here is a picture. Hopefully this is a good enough picture

The reaction I got tonight from the baby’s dad(my other half) and his family was not what I was hoping for. He’s happy I’m happy that I got my girl, but other then that? He seemed he didn’t care. How’d his family take it? He(my other half) wanted to wait til I found out the gender & tell his family. My mom broke it to his family and they seemed like they didn’t care. My other half walked in the door from being out somewhere and while my mom was on the phone with his mom all you hear in the background is my other half “yeah Ik who you’re talkin too” and that was it. There was no congratulations or anything from his family. His older brothers gf who I NEVER speak too I’m guessing found out and sent me a friend request on fb and won’t talk to me. It hurts that they’re reactions were the way they were. Are my other half & I talking? No. The last we talked was 2 hrs ago and the bad thing is, him and I are constantly talking.