Zoloft during pregnancy

I have always suffered from PPD pretty bad but this is my first pregnancy with prenatal depression and it is awful. I cry 3-4x a day. I’m extremely irritable and angry and I’m almost impossible to be around. My midwife prescribed Zoloft and said it’s pregnancy safe and gave me 25mg which is the lowest dose. I don’t want to take anything but I know that the depression, stress, and anxiety could be worse for the baby. What would you do? I am almost 16 weeks.