"so far this b.c. is effective i haven&#039;t gotten pregnant again and my daughter&#039;s almost 1yrs old. the thing i hate the most are the unpredictable cycles. my first cycle with this b.c. lasted 3-5days. i&#039;m pushing 3 weeks duration with cycle that i&#039;m currently on. to make matters worse it came at the most inconvenient time...2 days before a surprise birthday cruise."