(Closed) Day 1 question- charting

posted 6 years ago in TTC
Post # 3
1564 posts
Bumble bee
  • Wedding: August 2012

CD1 is the first day of real flow so if you just spotted last night, I would mark today as CD1.

Post # 4
529 posts
Busy bee

I record mine as the first day with proper bleading (not spotting). However, if you’re using a fertility monitor too, then the day you record as day one is slightly different, depending on whether AF comes before your testing window time slot or not. If you plan on using one, I stick to the same day convention for both to make the process less confusing.

Whatever convention you use, you should stick to the same one each month, so the statistics section of FF will show the correct info.


Hope this helps. Happy charting. My Darling Husband banned me from temping because he hated that the first thing I did every morning was reach for the thermometer (this was before we even decided to ttc).

Post # 6
441 posts
Helper bee

@ThreeMeers:  I would record yesterday as CD1 if that’s when you started actual red flow, especially since 6pm isn’t really that late in the day. For me, I consider the day to run from the time I officially wake up (7am) to the time I go to bed (10:30pm), so if started my period at 11:30pm on Saturday night, I’d record Sunday as CD1 because I was sleeping when I started. As long as you’re consistent, it shouldn’t matter much. You can always make a note of the time in your chart for future reference.

Post # 7
2652 posts
Sugar bee
  • Wedding: July 2012 - Catholic Church

@ThreeMeers:  I do something similar to twofortheshow: where I choose a cut-off time for when full flow appears. I chose 10pm as my cut-off time because sometimes I’m in bed by then and so if full flow appeared after that then I wouldn’t know what time it appeared at. As long as you’re consistent, I believe it should be fine. GL with your journey!

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