help please !! may be TMI

So we are TTC  af due tommrrow 2/5 we are waiting to take the pregnancy test tommrrow if af doesn't show but yesterday I wiped a tint pink color then regular urine all day yesterday and today, today we dtd and a tiny bit of brownish came out about the size of a tiny dot and when I wiped it was a weird tint pink but I pee regular what's going on ? 

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