Best days to concieve


We have been trying to get pregnant for about 6 months now and i’m currenly taking my 3rd round of prometrium. Being on the prometrium i bleed constantly and actually had a positive ovulation test two weeks ago today even with bleeding. I don’t think that i’m having intercourse at the time i should. What are the best days to concieve? I took a pregnancy test today but it was negative. I just don’t understand if i’m ovulating i would think i could get pregnant.