Q. I am on birth control pills, and I bleed very little on pill-free days. Should I stop or continue the pills?

Hi doctor,

I am a 28 year old female, and I am on birth control pills (Femilon) for the past three months. In the first month, bleeding started on the third pill-free day, and that time I bled on the first and second day. The bleeding was less, and I used only one pad that was not filled. From the third day, I started normal bleeding until the sixth day. In the second month, I finished my pack on the 19th, and I got my period on the sixth pill-free day. At that time, I bled a little amount for three or four days. And in the third month, I finished my pack on the 16th, and I got my period on the seventh pill-free day but, I bled minimal amount, not even one pad was soaked completely for three days and finished on the fourth day. Is it normal during birth control pills or is it a side effect of the pill? Should I stop or continue the pills? I am confused. Please help.

Thank you doctor,

I will continue it. In the second month, my period came in the sixth and the seventh pill-free day. Is it common? Even if I do not get periods until the seventh pill-free day, should I start a new pack on the eighth day? In that case, my period will come next month after finishing the new pack. Is it normal? If periods will not come in the pill-free days, one of my doctors advised me to get an ultrasound done to rule out pregnancy. I am scared; therefore I want to clear my doubt.

Thank you doctor,

I have understood but, my gynecologist advised me to take a 21/7 regimen in which a new pack is started on the eighth day. So, can you explain me about 21/5 and 21/7 day regimen? After starting a new pack, will the periods disappear till the next pill-free day? Or will it come in-between taking the pills? Should I follow a 21/7 day regimen or a 21/5 day regimen? Please clear my all doubts in brief.

Thank you doctor,

I will follow the 21/5 day regimen. If periods will not come for two to three months while taking the pills, is it normal? Will missed periods cause weight gain? Because I am conscious about my weight. I am 28 years old, who is 5.4 feet tall and my weight is 75 kg, and I lost 20 kg in the last few months after post pregnancy. I do not want to insert copper T because it has chances of ectopic pregnancy,  so I chose pills. Will missed periods cause weight gain and conception in future?