thanku so much for u reply
The trigger is a good idea even if you DO ovulate on your own as it helps to ensure all of the follicles rupture for ovulation.If you do not use it, you may not get each of the follies to ovulate and to answer your other question, you will only ovulate once, ovulation will not occur over days... I ovulate on my own as well, but the trigger is also part of my protocol. Good Luck to you!