So I just went the bathroom and just noticed a little couple dry blood spots in my underwear and then when I wipe its light pink, could it be implantation bleeding or starting my period?, my periods r usually very heavy and I'm not due for my next one until the 15th of March since I just had one the 14th of February. But one app says my ovulation day is tomorrow and the other says the 2nd, could those be wrong and I already ovulated? . Please anything would be appreciated!