Confused !!!

Ok so I know you shouldn’t but I don’t really take my pill like at all and this month I took my pill on the day of my period so I just started to get cramps so I took two pills from the packet and then about 15 minuets later had a really really light bleed but only one bleed and it was pinkish and 4 days later still haven’t had another bleed or any cramps or anything iv also took 3 pregnancy test and all very negative 👎 is it because I took two pills on that day or would the pill not even be in my system enough for it to stop my period I’m so confused someone please help me🙈😫🤷🏼‍♀️