Cramping and constipated?

I've been having cramps for the last couple of days, they are not that painfull, just uncomfortable, they come and go, I've been constipated, I am supposed to get my period in 5 days and honestly this cramps don't feel like regular period cramps, but right now I am confuse could this cramps be related with the constipation or could they be something else, a pregnancy is possible as well, my husband and I were having unprotected , I'm not trying for a baby anymore, so i'm not stressing over that...any comments would be appreciated.