I've been having irregular painful contractions since yesterday night and I've been feeling a little sick today. My son…

I've been having irregular painful contractions since yesterday night and I've been feeling a little sick today. My son has been pretty active since they've started. No bloody show or water broken. I'm 39 weeks 2 days.

What can I do to try and make these regular?

As for nipple stimulation:

I'm nervous to use my breast pump, does it hurt to pump?

I'll be taking a long walk in the feilds next to my house with my spouse when he gets home.