My first pregnancy I had BP readings starting to climb at 12 weeks (my first appointment was at 10 weeks so basically from the start), which was the first warning signs of things to come and the bp's continued to climb throughout the pregnancy.
My second pregnancy my BP shot up in my second trimester and then settled down around 22 weeks only to start going haywire again at 30 weeks.
Most doctors I have seen tend to ignore symptomns that occur prior to 20 weeks, because the medical textbooks say that PE can't be diagnosed prior to 20 weeks. What they try to pass off to patients is that this means you can't have any symptomns before 20 weeks which is bull. You can have many early indicators and warning signs before it shows up and while there isn't much you can do to prevent or stop PE, you may gain valuable time by paying attention to the early indicators (like rising BP, early protien etc..) and taking other steps like increased care, NST's, more frequent u/s, visits, BP meds, baby asprin etc..
I watched my BP go from 125/70 at 10 weeks climbing about 5 poinjts each visit to 140/90 at week 24. I also specifically asked about my BP because I thought it was VERY strange that a person who had NEVER EVER EVER EVER EVER had a BP reading over 120/65 had readings of 130/80 and my doctor told me that we would watch it, but that the real concern would be if it hit 140/90.
Mommy to Alex and Mason