This is my first month really charting, and I was wondering if its normal to have such a large temp drop before you O. I have always suspected I O around day 11, so I am getting pretty close. I was just surprised by such the large drop the past few days. Is this something fairly common? Should I just be more worried about my temps after I O?? So much to learn, I had no idea.

TIA
BFP #1 03/2010 EDD 11/18/2010 DD born 11/03/2010
BFP #2 12/02/2011 CP on 12/05/2011
BFP #3 12/28/2011 EDD 09/10/2012 Missed mc @ 9w3d on 02/09/2012 D&C 03/06/2012
BFP #4 04/24/2012 EDD 01/02/2013 CP on 04/29/2012
Re: such a large temp drop before O. Normal??
BFP#1 10/1/2011. Our perfect little girl, Her heart stopped @ 12w1d. D&E 11/23/11
BFP#2 3/13/12 Weird CP/Possible EP @ 6w0d
BFP#3 5/28/12 CP @ 5w0d
BFP/WTF#4 10/26/12 CP
BFP#5 12/10/12 EDD 8/23/2013
*PGAL/PAL Welcome*
My Ovulation Chart
Most likely, It won't do anything to your chart. There's a discard option. I would discard it. if for some reason you get more temps down in that range, you can always put it back in. It doesn't erase the temp reading, just ignores it.
BFP#1 10/1/2011. Our perfect little girl, Her heart stopped @ 12w1d. D&E 11/23/11
BFP#2 3/13/12 Weird CP/Possible EP @ 6w0d
BFP#3 5/28/12 CP @ 5w0d
BFP/WTF#4 10/26/12 CP
BFP#5 12/10/12 EDD 8/23/2013
BFP #2 8/22/12 | EDD 5/5/13 | DS1 born 5/9/13
BFP #3 4/25/15 | EDD 1/7/16 | MMC 7/2/15 @ 13w1d | D&E 7/8/15
BFP #4 12/9/15 | EDD 8/22/16 | DS2 born 5/18/16 at 26w2d
Just keep swimming.
♥BFP #1 "Spawn"- 02/23/11 | EDD: 11/01/11 | natural m/c 03/20/11 @7w5d♥
♥BFP #2 "Offspring"- 11/10/12 | EDD: 07/25/13 | incomplete m/c 12/14/12 @8w1d | D&C 12/21/12♥
♥BFP #3 "Progeny" - 02/16/15 | It's a BOY!! | EDD: 10/17/15 | BD: 10/23/15♥
All AL Always Welcome