Can someone please help me get out of this depressed feeling?

Any momma a feelin a little bit down in the dumps today? I went to go get my blood work done today and they told me I had a $200 balance to pay. I don't have $200 just sitting around. I have never had to pay for my blood work before. I tried to explain to them there is a deadline for my blood test and they just said there was nothing they could do. Then last night I found out that the father of my child has been in a relationship for a year now and I'm 3 months pregnant. His gf reached out to me and asked me questions and even apologized. I don't know why she apologized. When I asked the father about it he admitted to everything and then tried to blame the situation on me. I was so pissed off and hurt I told him the only time I ever wanna see him again is when I go into labor. I woke up feeling sick to my stomach. I feel for his girlfriend, I am pissed off at him, and I'm worried about how I'm gonna get $200 by Friday so I can get my lab work done. I haven't even been able to eat and I keep wanting to cry. I don't know why I'm feeling so emotional today. All I can think about is how bad feeling this way is for the baby, but I can't seem to get out of this funk. Help please?