i have my calender app on my phone to track my period the day i start until the day i go off an so i came on Dec8 an went off on the 13th an now its sayn that i am 6days late so what should i do? also it says im due for another period on the 19th

Hello, and thank you for sharing your question with the community. I'd love to give you some advice on the subject.

First of all you should be aware that to have a regular period it means that it starts the same day or approximately the same day as it did the month before.  So, if your last period started Dec 8th, your next period will most likely all start Jan 8th, or close to that day.  If this happens then you are having a regular period.

I am not familiar with the app that you are using but I want you to keep in mind that it might not be accurate.  If your period does not come by Jan 8th than it would be considered late, but not until then.

I hope this helps.  Let us know if you have any more questions.

Faith