Thanks for the query
If the pregnancy tests have been negative, there is not much need to worry about pregnancy.You may wish to do a beta hhCG blood test to be surely sure about it, in case of doubts.
The reason for the delay could be stress induced, hormonal imbalance or conditions like thyroid dysfunction, prolactin hormones changes, anemia, pill related side effects and even polycystic ovaries.
Kindly consult a gynecologist for an examination.The doctor may wish to do some investigations like blood and urine tests along with an ultrasound of the abdomen and pelvis if needed
Meanwhile drink lot of water daily and have a healthy diet.Reduce your stress levels and get at least 8 hours of sleep.
Hope this helped.
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.