Preeclampsia statistically does not *usually* recur in second pregnancies, and if/when it does, it is *usually* less severe and later.
Since you had it (or suspicious symptoms, certainly) in two pregnancies, and symptoms earlier in the second pregnancy, your concern that you may get it again is definitely valid. Unfortunately, age and/or space between pregnancies are considered two risk factors that do not really help the odds.
Then again, there are people like me-- I had severe pree at 23 weeks in my first pregnancy and then made it to 36 weeks (no pree, we delivered for other reasons) in my second pregnancy. My doctors thought for sure I would have pree again eventually that second time (because of how early and severely I got sick the first time), but I didn't.
Unfortunately, all you can do right now is keep an eye out for symptoms, keep an eye on your blood pressure, as you get further along, keep an eye on the baby's movement (and if growth was an issue in the past, maybe ask for growth ultrasounds.) Unless you are having symptoms *now*, try not to buy too much trouble worrying about what *might* happen, just stay vigilant and report any symptoms or concerns to your doctor.
Me (29) DH (30)
#1-Olivia Caetlyn-9-28-09-9-28-09, 23+2 wks, emergency classic c-section, class I HELLP, IUGR
#2- Lucas Oliver (rainbow baby)- April 2011, 36+2 wks, HELLP and pre-e free! (lovenox and LDA pregnancy)
#3-Matthew, late October 2012...mostly normal, 37 wks, (lovenox and LDA again)
My blog: http://www.butterflies-and-rainbows.blogspot.com/