Hello I Have Done Sex With My Future Husbansd And

Hello i have done sex with my future husbansd and before almost one month. But my periods are still not came . When i was worry about unwanted pregnency then i used pregnency checkup kit but there are negtive . Means have no pregnency.

Now i am worry about my periods that why my periods are not starts yet now and how i could be start my periods and relief mentaly about all tensns like pregnency ect