Ahhhh. I hate my body.

Mellise • ~BFP August 2016!~ 👶🏻💙 (used pre-seed.softcups.opks) Pregnant with #2 Due Jan,11,2019
 Soo for the first time in my 13 month TTC effort my (usually VERY regular) body had.. I thought.. decided not to ovulate at all. (Frustrating) low temps all week and negative opk's.. 
BUT an Opk yesterday was a blaring positive putting my ovulation Exactly a week late. 
The workings and complexities of the female reproductive system confuse me.
 If I am ovulating today my 32 day average cycle will be a (40-something) day cycle. 
My question is; Is this normal? Should I be concerned? And, How does this effect my chances?