Can I sue for medical malpractice?

I called my OB 3 times in a week complaining of excessive swelling during pregnancy. I asked to come into the office to be seen, but was told that it is normal, a visit wasn't necessary. One week later I was admitted to the hospital with a condition called preeclampsia. My daughter was born at 26 weeks weighing 1lb 9oz and spent 10 weeks in the NICU. I, in turn, went into heart failure 3 days later. The heart failure was expedited by this pregnancy condition. I had to take leave from work, lost wages and had to pay out of pocket for health insurance. I also lost seniority at my job. Advice please.