Early period or implantation bleeding

ok ladies!

baby #2 is something I'm really crossing my fingers for, so I'm trying not to let myself get too hopeful, baby #1 took 4+ years to conceive and resulted in an <a href="https://glowing.com/glow-fertility-program">iui</a>, so DH and I do have difficulty conceiving. anyways, I woke up this morning to some light pink spotting, I'm 9 days past ovulation and not supposed to start my period for a full week. I'm never this early, I'm just really really hoping I'm pregnant. any advice or hopeful thinking?!!