I(23f) my ex (22m) we have a daughter (4 months). So our daughter came as an unexpected surprise after I found out at 31 weeks I was pregnant and me and my ex werent talking until i broke the news to him after i found out in hospital. He didnt take too well to the news and brought his (18f) girlfriend to appointments and when our daughter was in the nicu, because she was born 36weeks due to complications,(him and his girlfriend have been on amd off the last 5 months due to her mental health) but he also try to deny that ny daughter was his and wanted a DNA test, when she was a month old I was more than happy to do so only i said i woukd keep his daighter from him until it proved she was his and that didnt go well. He is her father btw.(He is her father the paternity test proved) Two months later. Now his family are mad I didnt put him on my daughter birth certificate. Well his actions made it so he wasnt, he hasnt paid for his child or barely sees her, his mother is the one who sees her more than he does.Now onto the girlfriend who we call Alex(not her actual name) she was my friend when she was dating my ex friend before they broke up she got with another one of my exs friends before him. (A week ago) me and him did talk about getting back together before he went on holiday(this was before I knew he got back with his now girlfriend) when I found out yes I was hurt but I wanted to protect my daughter, so, ive asked him to keep his girlfriend from my daughter but I don't feel like he will respect my wishes. Would I be AITA if I dont let my daughter over there without supervision from his mother or my parents. I want my daughter to have her dad in her life but he seems more focused on his girlfriend than his own daughter. I dont know what to do anymore because it seems anything I do ill be in the wrong so please reddit AITA if I asked my ex to not have his girlfriend around my daughter EDIT: His girlfriend has bad mental health issues and she can get physical when things dont go her way.