Cd27 positive opk neg hcg?

Nakita
Hi everyone not sure if I'm posting in the right place but hear goes.. 
Me and hubby have been ttc for 8 months, 😔 feeling like its never going to happen 
So cycle started 22oct as norm  I started using opks 
Cd 11=neg
Cd12=neg 
Cd13=neg 
Cd14=neg
Cd15=neg line slightly darker 
Cd15=neg little bit darker than day before
Cd17=positive two strong lines 
Then the same evening very light pink spotting thinking I am definitely O'ing this month continued to spot very light only when wiping till..
Cd23
Cd 24 I decided to try my luck with opk and its positive 
Cd25=positive 
cd26=positive 
cd27=positive 
Normally 28 dc but longest in 8 months has been 34 days 
Took HCG bfn (not first morning urine) what are your thoughts ? Sorry for the long story thought might help with ur feed back thank you baby dust to you all