My period start on 17.02 will surely end in 2days when will i ovulate as im tryin to conceive?

Difficult to predict: It depends a lot on how regular your cycles are. We know that a cycle starts approximately 14 days after ovulation if the egg is not fertilised, but the time from the start of a cycle to the time of ovulation can vary. Let's say, however, that your cycles are a steady, predictable 30 days. In that case you should ovulate approximately 16 days after the start of your cycle.