Final answer:
The medication to be stopped is the birth control pill, a form of hormonal contraception, to enable the natural ovulation cycle for conception.
Step-by-step explanation:
The medication that should be stopped for a 24-year-old female who hopes to become pregnant and would like to stop her oral contraceptive is the birth control pill. Birth control pills are a form of hormonal contraception which work by providing a constant level of hormones, such as estrogen and progesterone, to prevent ovulation and prepare the endometrial lining in a way that is less supportive of implantation. If a woman is planning to conceive, she must discontinue the use of birth control pills, which will then allow her body to return to its natural ovulation cycle.