I tried it with baby #1, and later that evening, my water broke. I don't know if the breast pump had anything to do with it, but I can tell you that I would never do it again, because my body was obviously not ready to go into labor. The baby wouldn't descend into the birth canal, my contractions never became productive on their own, and I wound up having a C-section after 24 hours of labor. Then my baby was born with signs of prematurity, even though he was "officially" full-term, and contracted a horrendous viral infection that almost killed him, at the age of 4 weeks.
After that experience, I would honestly rather show up at the hospital at 42 weeks and just have a C-section, than try to induce earlier and possibly wind up with a premature baby.