Yes, an hCG injection can increase the chance of multiple births, including twins.
An hCG (human chorionic gonadotropin) injection, often referred to as a "trigger shot," is used in fertility treatments to trigger ovulation. It can lead to the release of more than one egg during ovulation. If multiple eggs are fertilized, it can result in a multiple pregnancy, such as twins.
- Increased Chance of Multiple Births: According to the reference, one of the potential side effects of an hCG trigger shot is an "increased chance of multiple births, such as twins."
Therefore, while not guaranteed, an hCG injection does elevate the probability of conceiving twins or other multiples.
