Stress can cause delayed menses. Please do Thyroid profile and prolactin levels to see cause. Consult gynceologist

It is likely that the stress you were under and the illness you faced caused the delay in the periods. If the problem persists or worsens visit the gynecologist so that you can be examined and undergo investigations such as thyroid profile, ultrasound, etc to find the underlying cause of the problem and have it treated accordingly. These following steps may help with making your periods regular: - Avoid fatty, oily, fried and junk food - Exercise regularly (30-45min per day) - Destress yourself with practices such as yoga/meditation/tai-chi - Maintain a healthy body and diet (Maintain a healthy weight as per your BMI) - Have vegetable juices - Include corn, beets, lettuce, drumsticks, and pumpkin seeds in your daily diet - Avoid smoking and alcohol if you have the habit