A quick guide to Android software and handsets. With Google's Andy Rubin announcing that there are now 500,000 activations of Android devices per day, it's clear that Google's operating system has hit the big time.
In a natural (unstimulated cycle) or Clomiphene Citrate cycle, mature follicle size is between 18 - 30 mm. If triggered, these cycles are typically triggered when follicle size is between 17-26mm (dependent of the practice and IVF lab).
Most experts would say that the ideal follicle size associated with maturity of the egg is 18-20 mm or larger. There certainly could have been other additional factors leading your doctor to administer the hCG. My understanding is that once the trigger hormones are given, the egg will be released/ovulation occurs.