Terrified of being pregnant

Kimberly
I'm 32 and I have an almost 3 yr old. My husband and are are going to start ttc next month. 
My first pregnancy was a horrible experience( I had 2 doctors falsely 
tell me that I was miss carrying with the first one almost ending with me having a d and c, bleeding from a polyp, having diabetes and taking insulin, and my job forcing me on leave because I asked to be kept away from surgery cases, as I work with radiation, a c section, and a surgical complication that led to my incision opening up. I had a nurse come daily to clean and pack the open wound until it closed 3 months later). With all the stresses that went on with my first pregnancy, I am absolutely terrified. 
I've talked to my husband and my family about my feelings but they don't really know what to say. I'm trying to stay positive and hope I can take it one day at a time.