light periods

Amy • Mom to a sweet baby girl, our rainbow!!
I have this very light bleeding since a year, which lasts only till one to one n half days on the whole... my obgyn has done all the tests but said that everything is normal.. but still I am really concerned that light bleeding is the cause for me to not concieve since we have been ttc for a year and half now... is it ok to have only light bleeding during periods.. does it mean that I can get pregnant no matter with the amount of bleeding?? Has anyone had the same problem and yet went on to have normal pregnancies?? Plz share... I am really depressed lately...