How far along am i?!

So I recently switched doctors. My old doctor didn't seem to know what she was doing. Anyway, she determined my due date, not by my LMP, but by measuring the baby early in my pregnancy. Going by her due date, I'm 30 weeks. Now with my new doctor, she measured me at 32 weeks (by measuring my uterus) but didnt change my due date. Now at this point I'm questioning things. So I go to calculate my due date on a due date calculator at it puts me at 32 weeks, using my LMP AND the date I concieved. Either way, they came up at 32 weeks.