Measuring weeks ahead

Mercedes

Hi moms I had an appointment earlier and I’m 24 weeks and 5 days. My doctor just told me I’m measuring at 29 weeks, but not to worry they’ll do an ultrasound my next appointment next month. Of course I’m worried! She did mention baby could just be in a weird position, but went ahead and did an order of 3rd trimester labs. Any moms went through this previously? I had early preeclampsia my last pregnancy in 2018.