Positive Test?

I took one two days ago.... It was completely negative then.... We did "try" on my LAST possible ovulation day.... so I didn't think anything would actually happen .. but this morning my boobs hurt and feel bigger... so I was like ok I will take my last one. Period suppose to be on the 7th. I guess it's a good thing I have my annual obgyn appointment tomorrow morning.... Am I seeing things or is there a very faint positive?