I have taken postinor 2 last sunday 26th june. My last period is on 6th june. My average cycle is around 36day?

Im wondering if i take again today (1st july), is it would be necessary? (i just have sex just now). I not really understand about the progesterone level in my body now coz.i just took it on 26th...pls answer me asap..huhuhu...julie