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.
Usually in blood test for pregnancy, beta HCG levels below 5 mIU/ml should be considered as negative for pregnancy.
So, according to this, the possibility of pregnancy is less in your case.
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.