What's going on?!

So I've been experiencing super sore boobs since a little past ovulation, for the past 3 days of on and off pink tinged cm (af was due yesterday). Took a test today and bfn at 15dpo. This is out of the norm for me (although I think wishful thinking sometimes convinces me its out of the norm when it isn't) anyone ever experience this and still get a bfp? Trying to stay positive