Period came may 4 at about 11:45pm, i take birth control pills monday, 1 pill at 11am, 1 at 1pm and no more pills until today, when will be my ovulation?

2 weeks: Around 2 weeks after onset of periods. Ovulation may be delayed for few months after pills.

Need clarification: If you were not taking pills and you have a consistent 28 day cycle, you would likely ovulate around May 17.However, it sounds like your use of birth control is not correct. Birth control pills are meant to be taken one each day, every month, all month. Taking them randomly will not protect you from pregnancy and it may alter your cycle and when you ovulate so it is uncertain when you will ovulate.