Thanks for the query.
I understand your concern.
Little bit of irregularity in periods can occur due to many causes.
Usually menstrual cycle with length of 21 days to 35 days should be considered as normal only.
So, better to wait for four to five days.
Possibly you may get periods by that time as you are having premenstrual cramps.
If you do not get periods even after five days, please go for urine pregnancy test once.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.