So scared

Hailey • Hi im hailey im 20 years old my hubby is 24 and were still ttc for baby #2 after to miscarriages
I've had one healthy baby in sept of 2013 scence then I've had two miscarriages and am 4 weeks pregnant again I'm so scared this one will also end in a miscarriage and i feel as if the drs wolnt do anything to prevent more miscarriages I have a fibroid in my uterus I'm scared that's the problem any one else had these problems what was the out come of other pregnancy