In my first pg my BP started to rise from 26wks, in my second pg my BP was raised from 23wks, in my third pg it started to rise from 13wks.

All times I was put onto BP medication & monitored closely in regards to my BP levels, in my first pg I never developed pre-eclampsia or any other signs of it (although I did deliver at 32wks due to PROM at 31wks. Unfortunately my last 2 pg's resulted in 2nd tri losses (but not BP related in any way).

Sorry I can't be of any more help but if you are at all concerned then maybe speak to your Dr/ OB or midwife to get some reassurance.