I am a 26 year old female on birth control pill Crisanta for almost 12 months. I take it regularly. Last month I had an episode of two to 3 time stool happening in a day but not diarrhoea and normal. However I took enteroquinol. After that I had sex on pill free week with condom but little bit of precum may have come in contact. After that my periods came normally on 4th day and continued till 8 days. But now I am having acidity which started from the 6th day of my periods and continuing even after I have started taking pills. I have taken medicines but of no effect. Is there any chances of pregnancy? I have taken my birth control pills regularly without any antibiotics.