I'm an irregular period patient. My doctor suggested to take nidagen 200 tablet to get conceive. I take this tablet for 3 month. First 2 month I get period at the same day of the month, not conceived. But third month I missed period and get spotting. Now 2 and half month ,but all pregnancy test get negative even ultrasound. So i'm fully confused .my belly get bigger and hard. So please suggest me doctor.