Any advice or experience welcome!

Looking for advice or experience! I had a girl Nov. 2017, completely uncomplicated pregnancy; had a boy Feb. 2019, developed borderline high blood pressure from about 20 weeks on, got induced 8 days before due date; got pregnant & miscarried June 2020 (1st loss, no explanation) had high blood pressure as soon as I found out I was pregnant; got pregnant & miscarried Jan. 2021 (2nd loss in a row, no explanation yet) had high blood pressure from literally the day I found out I was pregnant. My blood pressure is only high when I’m pregnant, even before 20 weeks. We’ve been trying for a total of 14 months for baby number 3 with 2 unexplained losses and aside from my blood pressure being high while pregnant, I am pretty healthy, my fiancé is also healthy. I just don’t understand how I have 2 healthy kids but all of a sudden can’t seem to carry past 9 weeks. Does anyone have any similar experiences or any advice? I know a majority of doctors don’t dig deeper until you’ve had 3 or more losses but I just don’t understand how I had no issues before, I’m healthy, 21 and have been trying for over a year with no luck.