"i have had irregular periods for a long time i was on ortho lo but due to insurance i had to take tri sprintec. i read a lot of the reviews and i was so scared  to even give in to taking them but i was bleeding off and on for 5 months so i felt as of i had no choice. i never got sick i felt a little light headed no sore breasts or anything my stomach did feel a little weird but like most meds you should eat at least an hour before taking it. my the time i reached my white pills i started my period it was awful but that due to the fact i didn&#039;t really have a period in months i could barely work i changed a super plus tampon every hour after that day it was manageable. so far so good though."