Stretchy Yellow Discharge

Lately, I have been having stretchy yellow and/or creamy white discharge. I’m supposed to get my period in 6 days. Also, my stomach has been bloated. I’m really constipated and I’ve been getting small cramps. To add, there was one day where my nipples were VERY sore and sensitive, but it stopped the next day. Am I just PMS’ing or should I be worried for a pregnancy?