Hello,
Thank you for your query.
It is possible to get pregnant while on birth control but the chances are very less (about 3%).
*how long have you been on the pill?
*did you start the pill as prescribed?
*have you regarding periods so far? (before the pills)
I recommend :
-wait for Another week after the placebos are over. If no period, take a
pregnancy test. If negative wait for Another week and see your
OBGYN to check any
hormonal imbalances or functional ovarian cysts (which are Benign) that could be causing the delay in periods.
Some irregularities in menstrual cycle and flow is expected while starting the pill (about 3 months).
This regulates over time.
To answer your question specifically - no it is unlikely to get pregnant while on the placebos if you have been taking the pills regularly.
The timing of the placebos coincides with the period after ovulation. Hence no fertilization can occur.
Hope this helps. Please let me know if there is anything else I can help you with.
Wish you good health