Hi I Am 31 Years And Planning To Conceive. I
Thanks for your query.
It takes not more than 2 days for ovulation to occur after the HCG injection. Most of time it occurs within 24 hours, intercourse or artificial insemination now can be fruitful.
The ovulation has to be confirmed with a follicular scan, this indicates whether it has occurred, how many ova have been released, and whether they are viable or not.
Hope, I answered your query.
Wish you good luck.