Want to get pregnant but have hypertension?

I have 3 kids already but I really want one more. My kids ages are 11, 6 1/2 and 4 yrs old. My husband does also want one more. Yes I know I need to go to my doctor to see what kind of high blood pressure meds I am able to take while being pregnant. But was wondering if anyone knows what meds I could use I am taking lisinop/hctz 10-12.5 tab what other meds would be fine to take while being pregnant? Lisinop is the on that is not safe. Plus has anyone had a baby while having high blood pressure before getting pregnant? What did you go threw during it. Did the baby come out fine and you yourself? I read somewhere that you can take Lisinop the 1st four weeks but after that it is not safe at all for the baby. I am 36 yrs. old. I found out I had high blood pressure at 32. Yes that is very young to have high blood pressure. I was told it is hereditary since my father himself got high blood pressure in his 30's as well.