Caffeine and ovulation

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ardeur Posted: Fri, Sep 28 2012 12:41 PM

Is there any known association between caffeine intake and late ovulation (long follicular phase)?

DH (31) Kiss Me (32). Started charting 7/10/12.  My chart

1st BFP 11/19/12 --> loss @ 15 weeks (Feb 2013). Baby measured 9 weeks.

2nd BFP 5/13/13 --> Zachariah born on 1/29/14 @ 39w5d, 10lbs 2oz and a home waterbirth. 

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Adacat replied on Fri, Sep 28 2012 4:17 PM

Most of the articles I found were pretty old (done in the early 90s) but one of them suggests the opposite--that a shorter menstrual cycle seemed slightly more common in women who consumed a lot of caffeine.  A lot of caffeine is defined as 300 mg, and there is approximately 100mg of caffeine in 8 oz of brewed coffee.  Here's a link to the most relevant study:  Their study concludes "caffeine intake was not strongly related to an increased risk for anovulation, short luteal phase (<10 days), long follicular phase (<24 days), long cycle (<36 days)..."

I skirt the limit of  "a lot" of caffeine--right under 24 oz a day.  I'm a coffee hound. Embarrassed  I do tend to have slightly shorter than average cycles (usually around 25 days) although I've had some wacky ones lately.  

Hope that helps!

My Chart

Me: 37  DH: 35 
Uterine septum & endometriosis Rx July '12; hysteroscopy & laparoscopy done Sept. '12.  TTC #1 since Nov '12!  "Skinny" PCOS 
Cycles #1-5, Nov '12 - April '13: Lots of ART, lots of BFNs
Cycle #6, May/June '13:  No ART, just a super clean diet (Whole30).  O on CD36...Chick BFP 7/1/13!     EDD:  3/13/14

Noah born 2-26-14 Baby Boy

TTC #2 as of January 2015.  

Cycle #1:  Follistim + Letrozole + Ovidrel = BFP!  First try.  Can't believe it.  EDD:  10/27/15  Baby Boy #2 Baby Boy

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EngineerMom replied on Sat, Sep 29 2012 8:56 PM

I recently cut out caffein and haven't noticed any difference.


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