Irregular periods. To get periods soon.

I'm facing irregular periods. I missed my before 2 months and took meprate 10 mg for 2 days got my periods after 5 days. After that I still din't have my periods . I tried meprate again this month for 3 days but there isn't any sign of it still. I checked here with a gynaecologist and she told me my hemoglobin levels are low and that's the reason I'm not having my periods , can this be an apt reason. I had oral sex, last month and I'm still worried after that, just orals. I've heard meprate dosent work if pregnant. I've took 2 HCG urine test that gave a negative at proper intervals . After one month of orals. Is there any other way to get my periods soon.im pretty sure I don't find any symptoms of pregnancy like spotting,brest tenderness, or any sort.ive just encountered some whitish smear in my under pants . I hope those are because of sexual arouseness. I don't have them now. I had it for 3 days not now. Please advice how to get periods soon.