New to here

Hello everyone, my name is Rachael and to be honest I never thought I would be here. For 12 years I had a loving supportive husband and then last Saturday he walked in and said he loved me he just does not think he wants to work on us anymore. We already have four kids between us and this baby was a magical surprise. He is talking to someone else he swears there is no affair there, but I have caught him telling so many lies lately he is probably not telling the truth. After he told me it sent me into a tail spin and I ended up in a mental health facility for a few days to get better, I have been home for a few days, but I barely sleep and I don't eat I just throw up. My nerves are shot. He has decided he is not leaving the house so we are cohabiting till I can talk to a lawyer and do something about that. I filed for child support today. I know it sounds awful but I also started a love letter writing campaign to him. Once a day I send him a love letter, that's all the communication I give him. I just want him to think about what he is leaving to go be with her. I want him to remember what was wonderful about our marriage like I do. I am currently 13 weeks and 5 days pregnant.I am a high risk pregnancy and due to my stress I have lost 25 lbs. So hello everyone.