Hello, While taking Slinda active tablets, I had 3 diarrheas on different days. They occurred within 3-4 hours after taking it, so I took an extra pill on each of the three days from the same package. After the active classes ended, I started taking a placebo. Was the effectiveness of contraception weakened by the reduction in the number of white pills? I had sexual intercourse on the second day of taking the placebo pill