Thanks for the query.
I understand your concern.
Little bit of irregularity in periods can occur due to many causes lifestyle modifications, weight changes, stress and strain, hormonal imbalance etc.
Fullness of the breast, abdominal cramps, nausea etc symptoms can be seen in premenstrual and also in early pregnancy.
So, better to go for blood test for pregnancy or ultrasound, which can give more accurate results compared with urine pregnancy test.
If any of these tests also gives negative result, the possibility of pregnancy is less.
And you can take tablets to induce withdrawal bleeding with your doctor's advice.
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.