I did a pregnancy test this morning with a clear blue digital and it said "pregnant". However, I'm a little concerned as I've had brownish spotting today. Hardly anything, the tiniest bit in my underwear which looked more like a smudge as opposed to anything else. I haven't had anything when I wipe but there is brownish cm a little further inside. If I press with the tissue a little, I can see brown cm on the tissue. Is this normal or could I be having a chemical pregnancy?