2nd missed period, negative tests what do is do?

See your doctor: Many reasons-could still be a pregnancy, irregular cycles, thyroid, pituitary abnormality-please see your doctor.

See a doctor: If you missed a period and your pregnancy test came back negative, then you most likely had an anovulatory cycle, meaning your ovaries didn't release an egg. This happens from time to time but if consistent, see your doctor because you may have a hormonal imbalance. Consider a birth control consultation to regulate your periods and avoid unplanned pregnancy.