TTC and I'm just so emotionally wrapped up in this that I feel like im seeing pregnancy signs that are not there, or I'm just looking for things to call a pregnancy sign. My nipples are tender which never happens to me during my period, my dog has been clingy lately, and I'm experiencing an extremely light period which makes me feel like it's implantation bleeding. I'm just super discouraged. I'm trying to stay positive. The 21st will be 7 days past this "implantation bleeding"/light period. So if it says negative at that point then I guess it's negative.