Freaking out about Period

So on the 8th I went to the restroom and I used the bathroom and I seen blood as I wiped so I thought I started my pd so I put on a pad the 9th is when I was  really suppose start which is today I went to the bathroom today my pad is clear but when I  wiped it looked light pink drops on the tissue like no deep red coloring like a pee resemblance now I had a period last month in November but I took a plan b pill which caused it to come early...is this my pd starting and it's just taking it time to come through or should I be worried ??? Idkk what to do and I am freaking out horribly can anyone tell me what's Going on please I would really appreciate it