Can someone help me please don't ignore please

So yesterday I was meant to start my periods and so I saw a spot and I though that  it was that time so I put a pad but I didn't bleed all night till 12 in the day where I had spotting but my period is lighter then usual today is meant to be my heavy day and I know it looks heavy but it's not not this is today's pads, I don't think it's implantation can anyone think of why it might be light and I do have a regular cycle never changed till now ::)