Period symptoms but no bleeding

I am very concerned that i am pregannt, although i am probably worrying prematurely. My period isn't technically due until tomorow, however, i am noramlly a few days early with it. But i have been taking a birth control pill for a while now. this one i am on, i have been on for well i'm just starting the dumy pill week on my second month. before that, i was taking a pill for 6 months time, the does wasn't strong enough though and my doctor put me on thi snew higher dosage. my period was regular last month. but i have had sex recently, and my parter came in me twice. =/ i have horrible cramps but no bleeding, only a light pinkish discharge, at best. i have no breast tenderness at all, but it is very weird for me not to be bleeding yet. i have been taking a parsley infusion to help my uterine contractions in hope of bringing on menstration ((yes, i'm aware these make cramps worse, but please bear with me) i am considering going the route of dong quai just to be safe, but i'm not sure. i would really appreciate some in put on this! thank you so much ='[