What's this? ( TMI)

Ashlyn • Ttc#1, married on 7/5/13, ttc since then.
My husband and I have been ttc for 8 months. My cycles vary from 30 to 36 days. The picture I have posted happened today and my ant farm is due on the 18th. The spotting was very light before this picture as the day progressed it turned light brown, but it has now stopped. I have no other symptoms. ​Any ideas?