Hello,
Thanks for posting your query at DoctorSpring.com
At times, while on the pill, you might experience some form of irregular spotting / bleeding.
Do not give it much thought, it is fairly common.
You were quite right in continuing the pill pack as usual.
Had you not done that, you would have experienced more irregular spotting or bleeding.
Most probably your next period would be on time.
However, with any deviation from your normal period, you should always take a pregnancy test.
If that is negative, nothing needs to be done this month, apart from continuing your pills on schedule.
If you experience any more such issues next month onwards, a consultation with an OB - GYN is due.
An internal exam, a Pap smear, pelvic ultrasound scan and hormonal levels should be done.
All the best
Please feel free to discuss further.
Regards.