confused as always🙄

crystal • Married to my soulmate ❤boymom👱🏻 Endo warrior💪 Hopeful Adoptive Family👣🙏💕

so I'm on cd 4 and have a light period today..Started testing on cd 1 to to see if I o on my period..well they all have been blank except todays first pic was at 10 am second @ 1..I know its neg but whybis it getting darker already? And is even possible to ovulate so close to af? Please help ttc for 4 yrs and I still feel lost😐