I married 1 year ago and after 5 months I had issue of spotting during one menstrual cycle so I consulted doctor and I was diagnosed pcod and my doctor prescribed me to take birth control pills and metformin inositol for 3 months after that I had regular cycle( 30,28,24 days) cycle each  with normal bleeding of 5 days and after I stopped medication on that month my period came with in 21 days I and my husband met one time during this cycle but I was spotted during my 26 day of menstruation cycle no bleeding I took pregnancy test on the next day but it came negative  I was expecting pregnancy should I retake test or else it was not pregnancy please reply.