what are some nonpregnancy reasons for a late period?

Question

My period was supposed to start Sunday. I have a 9 month old son (who no longer breastfeeds). I am not on birth control. 
I took a blue dye test Sunday and Wednesday. Both were negative. My right breasts aches.
What are some nonpregnancy related reasons that I could be late?

Answer

Stress and physical activity are big factors if a period is running late

Answer

Diet change, or stress.

Answer

Diet, stress, just plain old irregular cycles..

Answer

Breastfeeding in general can throw your whole system out of whack. It could be that.

what are some nonpregnancy reasons for a late period?

The Top Baby Tracker App: Embrace New Beginnings with Tender Care

The Top Fertility Tracker App: Your Path to Achieving Pregnancy

The Top Pregnancy App: Nurturing Your Journey to Motherhood

The Top Period Tracker for Empowering Your Menstrual Health Journey