Hi,i Missed My Period Already For Two Weeks (no Spotting,no

Hi,i missed my period already for two weeks (no spotting,no symptoms of pregnancy)
and got negative results back. For the first week of being late i tested (clearblue) and that was negative so i waited for another week and tested again (clearblue) with the same results. That week i checked my blood preasure and it was pretty high where i probably needed to go to the hospital. I'm supposed to be taking medication for high blood preasure,but i haven't since i'm breastfeeding.