If i had a?congenital heart disease will my kids have it too?

Very unlikely : In some conditions, having a parent with congenital heart disease raises the relative risk that their child may have congenital heart disease. Even with this increased risk, the chances of having a specific child affected are probably only around 1%. You should speak with your cardiologist or a geneticist to get a closer approximation of your risk.

Slightly increased: Dependent upon your diagnosis, the chance of your children having chd increase from around 1% to anywhere from 2-4%. If you have a genetic disorder the chances can significantly increase.