Is this labour??

A • expecting baby #1 March 2015!
Im 39w6d and had a few contractions last night. Now about two hours ago they came back and ive timed them, averaging 5.5-7 minute intervals, lasting about 45s-1min10s and its been two hours like this. I just went pee again and noticed pinkish blood on my liner.... Do i go in?? Or wait?? Ahhhh so exciting but nervous!!!