I'm confused as to what part of your cycle you are in but there is always that chance there if there was no protection or if it broke. The morning after pill will only halt your hormones so you don't ovulate so if you have already ovulated then it would have done no good.
You only get pregnant during the 5 days of ovulation, not during your period. And what do you mean 11th day? I don't understand that part. I'm a Mom of four...I don't know anything about the Morning after Pill, but I do know what it is (never had to take it) So I wouldn't know how effective it is.
Honestly, I think you're safe seeing your next cycle isn't due until the 16th. If it was May 6th, then I would worry!! Good luck and update if you hear anything
i meant 11th day after my periods get over..n thanks a lot for saving your time to reply me.