Stressed out

Not really 100%pregnancy related but for the past few days I've been extremely stressed. Just wandering if anyone has gone through something similar. My 11 yr old started acting strange this school yr not liking school and just not being herself. Well 2 days ago me and her got into it then we finally sat down to talk and she asked could she tell me something I was like yes you need to know you can tell me anything. She said mom I'm bisexual I said ok I mean my bf daughter is bi it doesnt bother me. Well then she said she was transgender idk where she learned this or got this from I mean she used to be girly and stuff when she was little but over the past 2 years shes been more tomboyish but I didnt think anything about it because I've never been really girls. She said she know she belongs in a boys body and is just waiting til shes comes out completely. I've cried for the past few days not knowing what to say or how to feel. I miss my lil girl now it's like she doesn't need me anymore she doesnt like hugging or talking or anything. I dont know how to cope or what to say to her any suggestions will be appreciated. I'm posting anonymously just in case please help me. I'm 31wks pregnant and don't need this stress