Anytime you have unprotected intercourse, there is the risk of pregnancy. The penis leaks pre-ejaculatory fluid (pre cum) during fore play and prior to ejaculation. This pre-ejaculatory fluid can contain sperm, which could result in pregnancy. Therefore, pregnancy could occur even without ejaculation in the vagina. This is why the withdrawal method is only about 70-80% effective.
Yes, one week of birth control pills can alter your cycle, making is come earleir or later than usual. It may also alter your ovulation time.
It is quite uncommon for the symptoms you describe to be side effects of the birth control pills. These symptoms are more frequently signs of a urinary tract infection or yeast infection.
If your next period is more than 1 week late, do a pregnancy test. If it’s negative, consider restarting another long term method of birth control. Discuss your options with your doctor or clinic.
7. February 2012
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