I would definitely suspect a minute amount of blood - did you have sex (or do a rougher-than-usual cervical check) before you got it? Or a vaginal exam/pap smear? Any chance it could be ovulation spotting?
Unless it becomes more copious, I would just chalk it up to "one of those things" that happens sometimes 'cause our bodies are so wonderfully funky.
Unless it becomes more copious, I would just chalk it up to "one of those things" that happens sometimes 'cause our bodies are so wonderfully funky.