### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
hi, i have regular periods at around 26-27 days since i had my son almost 3 years ago. This month it is 35 days and I still have no period. I have taken 2 pregnancy tests which were negative. This morning i experienced slight dizziness. Any advice? Im 42 years old. Thanks

### output:

Hallow Dear, If you are sexually active woman, you are very right in going for pregnancy test. They are negative even almost 9-10 days after missing period. So the chances of pregnancy are remote. For your satisfaction you may repeat the test again after 4 days on overnight first morning urine sample. Alternatively you may get Beta Chat Doctor test done. When no pregnancy is confirmed, you have to consider following possibilities: 1. Considering the age, these could be premenopausal changes when the intermenstrual period goes on increasing and ultimately, the menstruation bids you goodbye. When there is no menstruation for 6 months (according to some definitions it is 9 months) at menopausal age, it is labelled as menopause. 2. You may be having or developing hormonal + metabolic imbalance which leads to Polycystic Ovarian Syn Chat Doctor.  3. Thyroid dysfunction also may cause irregularity in menstruation. At this age, Thyroid dysfunction is common. In my opinion, the possibility of the former one is more at this age. Blood examination for FSH, LH, Estrogen, T3, T4 and TSH levels will clarify the issue and clinch the diagnosis. If you are keen on having menstruation even after the pregnancy tests are negative, you may take Tab. Devilry for 5 days. You will get menses within 4-7 days after these pills. However, take an informed decision about whether you want the menses to appear or you want the cause to be detected and managed if needed. I hope this helps you at this juncture.