Implantation bleeding?

UPDATE:

So I woke up this morning fully expected af to be in full mood and there was nothing. Nothing on my overnight or when I wiped. I have had slight cramps but nothing compared to my actual period cramps. 😱 I read that IB usually comes right before your period starts so maybe that’s what last night was???

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I’ve never experience it before... but I went to the bathroom about an hour ago and when I wiped it was a pinkest red color of blood. It was a small amount, could it be IB or af? Af is due the 16th... I didn’t think to take a pic 🤦🏻‍♀️ when is IB suppose to happen?