34 TTC #1. IB or AF? BFN.

Gabrielle
Hi. I took a test at 9 and 11 dpo with BFN. AF was due yesterday at 14dpo. I had very light pink spotting only when I wiped pretty much all day. But in the evening and now today there is nothing. I took another test today and still BFN.  I have had all the normal symptoms of PMS and thought/hoped I could PG prior to the negative tests earlier this week. My BBT has also been elevated since ovulation.  I'm only 3 months off of oral birth control but have never had spotting or a light period like this.  Not sure what to think but still holding on hope that I could be Prego. Anyone have similar experience with a late implantation or delayed positive test?