IDK What To Do...

Me and my girlfriend recently broke up before she gave birth to our daughter. She dropped her off for me to spend time with her and was supposed bto pick her up FOUR DAYS AGO! She isn't answering my texts or calls. She BLOCKED me on Facebook. I went by her house and according to her neighbors she hasn't been there. Idk what to do. Or why she would randomly block me when I have her daughter. Her friend told me she's in a different state. Idk if that's true, but I'm so confused and stuck on what to do.