Welcome to HealthcareMagic.I can understand your anxiety related to delayed menstrual cycle. Pregnancy is the most common cause of absence of menstruation
(amenorrhea). You can do a urine pregnancy test after 7-10 days of your missed periods, and if it is negative consult a gynecologist. Your doctor would do a serum hcg test/ultrasound uterus to confirm/rule out pregnancy and rule out other causes of delayed periods.
If pregnancy is ruled out and periods don’t come then the other causes may include conditions that affect the ovaries, uterus, hypothalamus, or pituitary gland
. It could be hypothyroidism
, polycystic ovarian syndrome
or less frequently a pituitary tumor causing high prolactin levels or a hypothalamic disease
You have to consult a gynecologist to get it evaluated. Hope it helps you. Regards.