TTC and very confused!

Vicki
Hello my husband and I are TTC.
​My cycles are pretty much 30-36 days. This is the first
​Month I tracked O
 
​I finally had a Positive OPK on CD 18. 
 We tried IN CD 14, CD 17,and CD 18when it was positive. 
​Three days later( CD 21)I had light pink CM when I wiped and some cramping and twinges in my sides. But no spotting since that wipe!
​ 
​I am now on CD22 and my BBT is up more than when I got my positive O.
​Any advice?  
​Who would think TTC would be so confusing!