Period?

Yesterday AF would have been two days late- I had a very small amount of blood/brown when I wiped a couple times and that’s it. I don’t have cramps or any other symptoms. Some nausea when I woke up but that’s all. No spotting or anything so far today. I am supposed to start Clomid this cycle. Does yesterday count as day one even though there was hardly anything? Should I test? Has this happened to anyone and gotten a BFP?