My husband and I have been trying to conceive for about a year and my cycles have always been long and irregular until recently they have been shorter as short as 16 days my doctor told me that I don't ovulate regularly but I do ovulate. This cycle I used an ovulation predictor and it said that my ov date was the 21st of may which was day 16 of this cycle as the first date of my lmp was may 5th I saw some very light spotting on the 27th of may, cycle day 22 and 6 days after my supposed ov date the spotting has subsided I am wondering if and when I should take a hpt and could the spotting have been implantation bleeding I have not had any classic symptoms of pregnancy yet other than an increase of appetite