Hi, I finished my last periods on 27/12/2016, and on 10 /01/2017 I have bleeding again. My periods are always regular, and we are trying for pregnancy, when I went to doctor he prescribe me norethistherone 5mg tablets , now from three days I am taking this 3 times a day, what happen if I concieve during taking this tableta, is these medicine effect on my pregnancy??? Plz reply I m worried about this.