I AM WORRIED In the mouth of August I started my period on 21st and calculated my ovulation day to be 4th of September. I made love with my husband and I bleeding lightly on the 15th of September. It was a light and brownish in colour till I took a pain relieving drug.(felvin 20). I got a heavy red flow with a severe pain. I menstruated again on the 13th of October and again calculated my ovulation day to be 27th of October. I had an intercourse on that day and 2days following. I am expecting my period on the 10th of November but I started bleeding yesterday. It was not red and heavy at first. I had bad cramps so I took paracetamol. 2 tablet. Now it s a heavy flow and it s red. I m having a very painful cramps. I have taken another 2 paracetamol tablet this morning and the pain still persist. I m I pregnant? As my calculations been wrong? I need to get the calculations right cause my husband travels alot and is not always around.