What to do if ovulation did not occur with hcg 10, 000 iu?

Varies: The HCG 10, 000 unit injection will only release an egg if a mature follicle is present. If the injection is given at an incorrect time prior to the follicle being mature then no ovulation will occur.

Figure out why: Ovulation should occur 99% of the time. There are only a couple of explanations: bad batch of medicine, not mixed correctly, . Not injected correctly, not absorbed correctly (sc v im shot), or that due to a higher body weight more medicine was needed.