If you remembered to take your pill within 24 hours of forgetting it, pregnancy is unlikely, especially if the pill you forgot was during your last week of hormone pills. However, pregnancy is alway possible when you have sex. The pill is not 100% effective. Even women who take their pills perfectly can become pregnant.
Your period was probably different because of the pill you took late. You period may stop for a while and then start back up for a few days. You may also have a little breakthrough bleeding or spotting during your next pack of pills. Try to remember to take your pills on time to avoid this.
9. February 2012
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