Ob-Gyn questions? Ask a gynecologist online.
after 3 months urine tests are very reliable, so pregnancy is quite unlikely in your case. The reason for the absence of period and the symptoms you feel can be a hormonal imbalance which is common in the time before menopause. A checkup of the hormone blood values by OB/GYN can give you certainty.
Dr. N. Scheufele
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