Are there some genetic reasons I get gestational hypertension during my pregnancies?

Probably. If you answer this definitively, you will win a nobel. There are lots of theories. A prominent one is that you have a abnormally high level of a protein called soluble fms-like tyrosine kinase (s-flt-1), which makes it difficult for small blood vessels to grow. This protein is connected to hypertension and pre-eclampsia in pregnancy.

Related Questions

What are the chances my gestational hypertension will continue after pregnancy?

Most resolves. High blood pressure caused by pregnancy - gestational hypertension, preeclampsia - will resolve after pregnancy. In most cases it resolves within a few days. Other cases can take up to six weeks. If high blood pressure does not resolve then you most likely have chronic hypertension and not high blood pressure induced by pregnancy. Read more...
Perhaps not. Many metabolic changes occur during pregnancy, most of which resolve by a few weeks to months after delivery. They may be indicators of subsequent risk of having recurrent issues in the future, so follow up with your doctors. You will most likely be just fine. Just make sure you lose the weight you gained, and keep fit! Read more...