My periods late for two days now but i buy primolut n and my choice tablets will they lead to my menses?

Not recommended: Women are late with menses often due to multiple reasons, but If you have had sex since your last period, you need to check a pregnancy test first. The hormone pills you mention are used to delay a period a few days (start them before you expect your period) or to be used as emergency contraception within 72 hours of unprotected sex.