Ok so ive been using?

answer ovulation test strips.. and started testing the day my period ended.. cycle day 5 just to test and pinpoint my ovulation.. sunday cd7 didnt show up positive but had a little line just lighter than the one strip.. and then showed the same the nest couple of days.. now today cd9 nothing showed up just the one line to the far left.. (control like) lol what do you think that could mean.. like i always say.. i know we r not dr's but we all are posting questions that we would like opinions on.. so give me yours and make it nice please... i usually ovulate around day 14 but just testing everyday this month to pin point it and i know it could change from month to month.. and yes we are ttc.. or else i would not be testing for it .... haha