On average, a woman in the US will use 3.4 methods of birth control during her fertile years.

Let’s look at 6 common reasons women change birth control methods:
Side effects
Some women may experience unwanted side effects from their birth control method, such as nausea, weight gain, or mood changes. If side effects become intolerable, she may choose to switch to a different method.
Effectiveness
Medical
Convenience
Cost
Lifestyle changes
“Ultimately The choice to explore different birth control options is a highly personal decision that involves many factors.”
Ultimately, the choice to explore different birth control options is a highly personal decision that involves many factors. It is important for women to be aware of the advantages and disadvantages of all the methods available to them, and to discuss these options with their safe partner and healthcare provider to ensure that they are choosing a method that is safe and effective for them.
Women’s sexual and reproductive health services: Key findings from the 2020 KFF Women’s Health Survey. KFF. Retrieved March 15, 2023, from https://www.kff.org/womens-health-policy/issue-brief/womens-sexual-and-reproductive-health-services-key-findings-from-the-2020-kff-womens-health-survey/