Early Labour

Jellybean

I've like 80% sure I'm in early labour. It's my third and I recognise this feeling. I've felt off all day, now had the runs and queasiness and contractions roughly ever half an hour. Any tips on how to get things going to make sure it is labour? I'm having a planned section when its comes to it so would like to get things going to make sure before I go in or ring up!