Getting induced in 2.5hrs! any advice?

i'm 40 weeks today and going in for my inductions. For those who have been induced is there anything i should know/expect that dr's didnt tell you? how was the pain? They are going to start me on gel's every 2 hours but will only do that 3 times. the triage nurse said since i've had previous births that 1 or 2 may be all i need. i've never had the gels so i dont really know what all to expect.