Period like cramps before labor???

Chelsea • I`m 26 been married to DH for 6 years. Have two beautiful girls 3 and 6 mo.
I'm 37 weeks on Sunday. Last night and this morning I have had some bad almost period like cramps especially in my right side. Does this mean labor will come soon??  I don't remember having cramps with my first. I hope this is a good sign!