how can i "start" labor ?

Vianey
How can i start labor i have a little bit of cramping sunday morning some tightness in my belly and some pressure on my lower left side but i can handle the pain . Yesterday they were a little bit more painful i can handle it but now i am just a lil uncomfortable i cant seem to like a spot  i like . I really want to meet him already but i think he not ready to come out yet 
Any ideas on what i can do to start it or something