I am19 years old and have been on ortho-tricyclene low since january, and i have never missed a pill. My last period started on may 3, but it was a little bit lighter than normal, and maybe a day or two shorter. On May 4 i got diarrhea, and it didnt go away for two weeks, and even still i have it every couple of days. i am worried that i might be pregnant because i have also had some nausea every day, but i think it might be from lack of eating, as my appetite has decreased. i do not have sore or tender breasts, and i have been a little constipated, but thats only if i have taken an immodium for the diarrhea,and the constipation usually lasts for about 2 to 3 days. i have noticed weird muscle spasms as well, but those are all over, in my leg,my butt, my lower abdomen, my arm. My next period isnt due until the 31st, but i am thinking about taking a hpt just for the peace of mind. I forgot to mention that i am sexually active, but i do notknowexactly whichdaysi have had intercourse. During the diarrhea i went to the doctor and was told i just had the flu, and they did a urinetest andtoldme that i had white blood cells in ti, and ablood test,which i was told came backperfectly normal. I have also been under a lot of stress lately,i'm up for a promotion at work and have been stressed about family life as well.