My menstrual is not constant i mean is not fallin on one date it jump from date to date it doesn't hav actual date nd i need help from NL

I think it's normal. It depends on your age and cycle. Most girls do not have regular dates. So, my dear, there is nothing wrong with you.
However, you need to understand the duration of your cycle and learn to calculate it well. Your period might show up earlier than normal, especially when you feel stressed up. It might also be late by few days.
You are fine, except if the period is missed for more than 28 days.

Just fluctuating hormones. Low dose birth control can help regulate it beter. Orthotricyclin lo is the most common one used for this. Orthoeva is also popular

Thanks so... much for your concern sis. i realy appreciate. God bless you ma.

First of all, your period is not by date. It is expected to jump from one date to the next. What you need to do is determine your cycle. To do that count the days from the day you started seeing one period to the date of your next period ( I hope you understand) this differs in girls. I have a 26 days cycle. What is most common amongst women is a 28 days cycle. Some even have 31 days cycle. That is how to determine if your periods are constant or not, not by looking at the date on a calendar