I'm pretty sure I'm having contractions, but not ready to call nurse to go in, just for them to send…

I'm pretty sure I'm having contractions, but not ready to call nurse to go in, just for them to send me home... they feel Like really bad period cramps..coming every 5-6 minutes. their strong but haven't bought tears to me...I'll go for walk after put son on the bus. I hope today is the day.. I'm 6 days over due.