Tubal and pregnancy

Hi. My name is Hope. I am 26 years old and been married 4 years. I have two precious boys. Ages 3 and 2. I had my tubes tied after my second boy was born. I regret doing it and I am wondering if I will ever get pg again. If It's even possible. I've read on Google of women getting pg after tubal ligation. And my friend has told me of women she knows that had the same miracle happen to them. I really would love to have a third child. If you have any advice,please don't hesitate.