It's a tough one, the fundal height can be used as an indicator that something is wrong. But i was a few cm ahead my whole second pregnancy and my OB didn't blink and eye. He said it's not so much the measurement as the changes in measurement from week to week. My pre-eclampsia was first picked up by no change in fundal height between appointments combined with high BP. That was enough to make him investigate further. Not that you are likely to have PE in a second pregnancy if the first was
But regardless of your fundal height, i think you should get a new midwife. One of the most important things is to be surrounded by people you trust.