Hi all - I'm new here and any help is appreciated. I started taking bc for the first time yesterday. My period started Sunday night around 6:30PM - very light pink, on and off all night. It was a full fledged period Monday morning. I took my first pill at 11AM. I just wanted to comfirm that this would be considered a day one start b/c it was taken in the first 24 hours of my period. Also, I had diarrhea around 7PM yesterday (which usually happens on the first day of my period). I just want to confirm that this did not affect the effectiveness of my pill since I had taken it 8 hours earlier. I appreciate your help!! :)