#1 induced with gel and they broke about 4 hours afterwards. I too felt the pop. It's such a weird feeling. I was laying in the hospital bed trying to sleep and had one leg crossed over the other when i heard and felt it. I had no idea what it was and didnt move for like 2 minutes. Then i moved my leg and gush! Glad i didn't have to clean it up.

#2 they broke just as i got out of bed at 5:30am. First was a trickle so i asked DH to quickly get me a towel and the i waddled into the bathroom and onto the toilet where they gushed again. Luckly the only mess was my pants!

#3 they didn't break until DS's head was out, in the bath. I felt the pop but thats it since i was already in water.