Grieving mom deals with infidelity

I am a 25 year old 16 week pregnant mother with a 4 year old son. Long story short I am newly married. The man I married runs a clothing business and that was my source of income to run the business. We recently have found that our baby girl is dying due to turners syndrome which has been very hard on me cause I’m 16 weeks along. I now had to find out my husband has been cheating on me for the past 2 months with another man... you know during our wedding ... during when I found out I was pregnant... I’m am at loss for words and feel embarrassed. I’m not one to ask for help but Im at a loss of what to do Because I’m currently living at a friends house and I can’t see my son due to me having to move 40 mins from his school. I feel as if I’ve lost everything ... I’ve lost my belongings, my sons belongings, my job, my vehicle, my bank cards and shortly after this is posted I will have no phone. All I want to do is start over from this nightmare and find a good job and be able to take care of my son.