Which one do you ladies use? Mine is on Advanced but if I switch it to Research it gives me CHs on CD8?
I think I will leave it on Advanced but am just curious what you guys are using. 
BFP #1- 11/7/10 ~EDD 7/20/11 ~M/C (bo) 12/6/10 @ 8wks ~Missing my Little Firework
BFP #2- 9/11/11 ~EDD 5/25/12 ~M/C (mmc10w)11/4/11 @ 11wks ~Missing my May Flower
BFP #3- 02/21/12 ~EDD 11/1/12 Audrey Lee Born 11/4/2012
BFP #4 ~EDD 6/20/14 stick baby stick!

Re: FF- O detection methond?
BFP 12/10/10 - DD1 8/16/11
BFP 10/29/13 - c/p 11/2/13
BFP 11/29/13 - DD2 7/18/14
BFP 3/20/18 - DS1 due 12/2/18
I switched mine back. But I kind of wish I wouldnt have found it.--it even gave me a estimated due date.
Maybe I will test at 12dp"research"o just to see? $tree test only
Now I have one more thing, besides the chart gallery and 'find charts like mine", to ponder over
BFP #1- 11/7/10 ~EDD 7/20/11 ~M/C (bo) 12/6/10 @ 8wks ~Missing my Little Firework
BFP #2- 9/11/11 ~EDD 5/25/12 ~M/C (mmc10w)11/4/11 @ 11wks ~Missing my May Flower
BFP #3- 02/21/12 ~EDD 11/1/12 Audrey Lee Born 11/4/2012
BFP #4 ~EDD 6/20/14 stick baby stick!
I wouldn't put much stock into it. FF will give you an EDD after you get your CH's.
I'm no chart expert, but I don't believe you've O'd yet.
BFP 12/10/10 - DD1 8/16/11
BFP 10/29/13 - c/p 11/2/13
BFP 11/29/13 - DD2 7/18/14
BFP 3/20/18 - DS1 due 12/2/18