Brief Answer:
Use condom or take additional measures for 1st month of starting pills to ensure full protection.
Detailed Answer:
Warm Welcome. I appreciate your trust in HCM and assure you are on best portal on the globe for expert online medical services.
I have thoroughly reviewed health query you raised, and well realize all of those concerns. Being your physician, I will take care all of them today and will extend my expertise to solve the problems.
Combined
oral pills like
rigevidon pills are usually effective from very first pill as you have started the pills at the beginning of periods. There is a low probability of getting pregnant in your case.
But those patients who ask me for near impossible chance for getting pregnant, I always recommend them to use additional
contraceptive measures like using condom for atleast a month of starting pills. This will ensure full protection and negate any possibility.
You can stop using condom after a month and continue pill only. Always use the pill on the same time of day and set reminder on electronic device to help remember.
Hope I addressed all the concerns you have. Let me know if you have further questions. I will be more than happy to clear any doubts. Keep a follow up to see how you doing.
Regards!
Dr. Ali Raza