Happened this morning

Saday • I`m 24yrs old TTC #2
I woke up at 6am cause I felt wet so I went to the bathroom to pee and I noticed some pink cm on the tissue then about 30 mins later it was red and now it's gone. I have some lower back aches, dull cramping in my uterus area and my period isn't due until the 11th could this be implantation or early period???? 7DPO