Okay so long story short, my husband and I have been TTC for over a year now and we recently started seeing a specialist due to not being able to. Well the specialist wants blood work and all this stuff, which I totally understand. BUT I am supposed to start my blood work on day 21 of my cycle which would be Tuesday, but I started spitting this morning. The spotting is something that's not really normal to me. I also have been extremely nauseous and my breasts are extremely sore. So my question is could it be implantation bleeding considering we track which days I ovulate or is my cycle just messed up!? Help!!!