An ectopic pregnancy occurs when a fertilised egg implants itself outside of the uterus. In a normal pregnancy, a fertilised egg would travel through the fallopian tube before implanting in the uterus.

“Imagine you’ve got a pipe and you’re running balls down that pipe, but then imagine if, in that pipe, you have a little bit of rust deposit – now when you try to run this ball through the pipe, it gets stuck, so it stays there. If for whatever reason there’s scarring [in the tube], and the embryo gets stuck, then obviously it can continue to grow there.” says Dr Joseph Sgroi –  obstetrician, fertility specialist and gynaecologist.

I chat to Mamamia about it.