Thanks for the query.
As you are having high blood pressure
in the early pregnancy and history of preeclampsia
better to be careful.
As the urine proteins are negative, this can be considered as hypertension
Edema of the feet can be seen in pregnancy and that will be more in hypertensive women.
So you continue with anti-hypertensive medicines, regular antenatal checkups and ultrasound
Take sufficient rest preferably in left lateral position.
Better to go for coagulation profile once.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429