I drank Ella one, 1 hour after the incident, period was late about 5-7 days from my usual cycle (i have 24 - 29 days cycle) the period came on day 33. I did pregnancy tests and all negative. The night before my period, I had light bleeding then the next morning my usual period colour blood came. However it wasn't as much as my regular period and now it's slowing down kind of done. So basically my period only lasted for 3 days. Is that normal? Am i pregnant?