Trigger shots are given once per cycle before ovulation. They can be injected either into the muscle (intramuscularly) or under the skin (subcutaneously). They're most typically self-administered, and many women choose to do the shot under the skin on the abdomen.

When do you take trigger shot IVF?

Essentially, in most cases the trigger shot needs to be taken 36 hours before egg collection, or a day and a half prior. So if you have a midday appointment for egg collection on Tuesday, you would take the trigger shot at midnight on the Sunday prior.

Can you ovulate 24 hours after trigger shot?

When Does Ovulation Occur After an HCG Shot? After receiving an injection of human chorionic gonadotropin, ovulation can occur between 24-48 hours, with the average time being within 36 hours. Ovulating as early as 24 hours is less likely, however, it can happen and couples should be prepared.