Hallow Dear, The first cardinal symptom of pregnancy to appear is missing a period which you have. You have not mentioned about sexual history. However, since you have suspected pregnancy, you must be having sexual exposure. You had performed pregnancy test 3 weeks ago; i.e. 3 weeks after missing a period. At this stage, this test is very reliable. The symptoms you are describing are not the symptoms of pregnancy. The cardinal symptoms of early pregnancy, in addition to missing a period are: 1. Nausea & vomiting with pica 2. Frequency of urination 3. Breast symptoms: Engorgement & tenderness, dark discolouration of nipples & areola with increase in areolar size, Montgomery s tubercles under areola and secretions from the nipples. Apart from altered taste, you do not have rest of them. So prima facae it appears you are not pregnant. The delay in menses could be due to hormonal imbalance, PCOS, Thyroid dysfunction like causes. Please report to your Gynaecologist for the treatment of underlying cause. If you take Tab. Deviry for 5 days, you should get withdrawal bleeding within 4-7 days. However, if irregularity in menses persists, you should report to Gynaecologist. I hope this helps you. Dr. Nishikant Shrotri