Hi. Recently I had to take the Plan B pill. I took this 5 days before my menstral cycle. Nothing happened until my cycle started. I ve taken one before and there was a short lived cycle two days after. I know why the short lived cycle happened. I m explain this in great detail so that you know the circumstances. Here is what concerns me... During menstration two large and flat clots appeared, approximately 2 x2 , fleshy white and red marble like color. One side of the clot was smooth the other bump like tapioca pudding bumpy and its constitution was gelatin like but slightly more dense. I ve been experiencing nausea and head aches since. No abnormal cramping. I m always exhausted during my cycle. Like sleep for 14 hrs straight exhausted. Prescription s include venlafaxine and flonase. So.. Should I go to the doctor?