1. Not all women get their periods on the pill! For many, they may get very light spotting or even nothing at all. This is because the hormones in the pill eventually will cause the uterine lining to not build up as much as it would in a regular cycle. Because of this, less bleeding occurs.
2. If you are taking a combined oral contraceptive pill, you have 12 HOURS OF LENIENCY as to when you take your pill. Your pill is not considered missed or even late and your protection is not at all compromised as long as you take your pill in the same 12 hours time frame. For the progestin-only pill, this time frame is a lot shorter: only 3 hours.
3. As long as you take a pill every day of the month and do not experience vomiting within 2 hours of taking the pill, severe diarrhea, or are taking contradicting medications, YOU ARE PROTECTED EVERY SINGLE DAY OF THE MONTH. EVEN DURING THE PLACEBO WEEK.
4. If you are taking a pill every day, you are more than 99% protected against pregnancy. Always.
5. Irregular bleeding may occur at any time during active pills, it is not uncommon. It does not mean anything significant, but if it continues, one may wish to see a doctor. Yes, slight spotting CAN be implantation bleeding, but when you are on the pill, it is possible to experience spotting at any time.