Help Line progression, Spotting

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9, 10, 11 dpo I have been spotting all week. It has been brown old blood but I just noticed the tiniest bright red specks...I'm only 3weeks 2days so scared this could be a chemical I shouldn't have tested so early!!! I lost a little bean in June just under 6 weeks and my lines hardly progressed. They are getting darker but I'm worried about the spotting.