Girls) 38 week all night were terrible pulling pains in the back and d…

Girls) 38 week all night were terrible pulling pains in the back and down the belly straight to the point exactly like during menstruation (mainly pain was in the lower back where the clitoris) I don't understand this contractions or what) The counter shows pain every 1-2 minutes with an interval of 7-8 min) As this is my first pregnancy at all I don't understand