I am 21 years old women I have irregular periods and for past 3 months their is no sign of period so I take ovacare forte pills for past 2 weeks and their is no improvement I am not in relationship please advice me to get regular periods?

Usually take BCPs. If you are having irregular periods that is usually addressed by putting you on birth control pills . speak to your OB/GYN.
Are you certain. that you are not pregnant? If you have had 3 consecutive negative pregnancy tests, each taken 1 week apart, then you need to get yourself to a healthcare provider to properly diagnose and treat your amenorrhea. There are certain medical conditions that can cause amenorrhea, including malnutrition, anemia, diabetes, polycystic ovarian syndrome, anorexia, conversion disorders.