Prenatal depression

I’m 21 weeks pregnant and have a 23 month old I cry all the time for no reason I’m a stay at home mom not by choice my daughter has type one diabetes and no daycare around my small town will do her shots. My family can’t watch her because they won’t do her insulin shots. I feel sad all the time I can’t talk to my boyfriend about it cause he is the type that thinks mental health is made up by doctors just to get money I’m just so stressed I don’t know what to do. I hate weekdays cause that means I have to be alone with my daughter. I love my daughter more then anyone in the world and wouldn’t change anything about her.