Now that we have decided OPK relieves not created stress

I need some recommendations. Cost isn't as much of a factor for me as ease of use, but of course both would be awesome. What do you recommend and why?
me:41 dh:43
Off Mirena Nov 2013, On Nuvaring end of Jan, Back off Sept 2014. Never ending cycle starting end of Sept...
11/14 Provera failed... cycle continues
12/14 High FSH (57 "midcycle") OBGYN had no clue... about anything
01/15 More lab results coming back from RE. U/S showed small (1")cyst on left ovary, thin lining, and couldn't locate right ovary so possibly straight to DE and IVF
Occassionally mess with the chart below to see "what if" and learn (not to make it pretty but because FF stays drunk with me).

My Ovulation Chart
Re: recommendation for OPK?
Me:39, DH:40
DD born 8/96, DS born 8/04
TTC#3
NTNP since 2006, active trying 1/13
Natural M/C 3/13 at 7 weeks
CP 2/14
All welcome
And why these? Because cheap and I love to pee on sticks!
Me 36 DH 39
BFP 11/28/14 ~ MMC 12/29/14
TTCAL Siggy Challenge