Preeclampsia

Yesterday i had my 16 week check up as i have to have regular doctors appointments every 2 weeks due to Hashimoto's disease and multiple losses. Yesterday my OB informed me that i am at a high risk of preeclampsia and i am wondering if any other moms have been down this road and their story. I am looking to educate myself and prepare for the just incase. This is our 4th attempt at having a child. We have had 3 losses one being a stillborn and are doing everything we can to make sure this little one has a fighting chance. Thank you for any advice.