3- 4 days: to reach a steady level of hormones can take 3 - 4 days. This is why starting with the first day of your cycle, with your very first pack of pills, is useful, enough time before ovulation to be working as a contraceptive.
Answered 9/10/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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