In the of chance you get pregnant and your tubes are tide it would be a normal pregnancy, all Tubal ligation entails is a clamped or blocked fallopian tube. The uterus would otherwise be unaffected and able to incubate a fetus.
You can indeed get pregnant after your tubes are tied in rare circumstances they can grow back. I was seven months pregnant but they thought it was an inoperable tumor that turned out to be my son. No birth control is 100 percent. And tied tubes don't protect again stds. Remember to choose life think first and adoption is always a consideration.
When tubes are tied they are "tied" not severed. My mom's tubes where tied and after 15 years they became untied and I came along, surprise! If they are severed, cut, it is extremely unlikely they will re-connect.