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Doubling Time?

Flowerstar1023Flowerstar1023 member
in Pregnant after a Loss
Anyone know what a good doubling time really predicts? And should this just be checked in a 48 hour window or are betas tracked for awhile (i.e. multiple doubling times)?

Thanks!
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Re: Doubling Time?

  • DenaMareeDenaMaree member
    I think how often/much you get checked is dependent on your OB/RE. The information my RE gave me was that he wanted to see my beta's rise more then 66% each forty eight hours to confirm a viable pregnancy and he does three total beta draws, every forty eight hours, the first one when I get my first positive pregnancy test.
        BFP: 2/24/14 | EDD: 10/22/14 (triplets) 
    US (with RE) 3/24/2014 (two healthy HB), US (with OB) 3/31/2014 (three healthy heartbeats)
    US (with RE) 4/7/14 No Heartbeats :(  | D&C 4/8/14
    BFP#2: 10/22/14 | (beta  #1 75, beta # 2 219) | EDD 7/3/15 ~*Please be our RAINBOW*~
    DX: MTHFR hetero C677T


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  • pblgepblge member
    Clinics seem to vary widely in how often they check betas, so I'm not even sure if there's a normal protocol. I've seen two a week apart, three two days apart, just one, or checking until they're over 1,000. I'm pretty sure what I've read is that 80-85% of normal pregnancies double within 48-72 hours, which still leaves a lot of initially slow growers in the "normal pregnancy" category. HTH.
    **********************siggy/ticker warning**********************

    ***Losses mentioned.*** TTC #1 since May 2012. Me: 37, OH: 41. Ectopic August 2012 => tubal damage. :'(  Stage 1 endo removed June 2013. IVF #1 Oct/Nov 2013: Long Lupron with Gonal-F. 7R, 7M, 7F. 2 txfer@3d. Nothing frozen.  => M/C @ 8 wks. :'( Selected RPL panel all normal. Very hyper and brittle response to stims. IVF #2 (antagonist protocol) Feb 2014 => Converted to IUI (Perfect conditions). BFN. IVF #2.1 w/ new RE June 2014: Antagonist protocol. 33R, 31M, 30F, 19 blasts to test!!! I made it through without crashing!! :) Hats off to Dr. Fancypants!! ET of one 5AB blast. BFN. 13 10 CCS'ed snowflakes! FET #1 PUPO as of 7/29 Betas: 8/7@24, 8/9@97, 8/11@334 (etc.) Two sacs on 8/15, one seen on 8/18 after a bleed. U/s 8/25 (6+3) "perfect": 5.9 mm + HB@120bpm! U/s 9/4 (7+6): 15.9 mm + HB@172 bpm! Please, PLEASE stick this time!!!!
    http://i955.photobucket.com/albums/ae39/catfreeburg/866da40f5178fed79efe23fc8a4e8a_zps4498a9cc.jpgimageimageimageimage
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  • christia10christia10 member
    Agree with pp's the general rule is it should double in 48-72 hours...however it could be higher for some especially if you have multiples or start off slightly lower for some too if you implant late etc
    For more info visit my blog: http://shockinglydomestic.com
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  • christia10christia10 member
    Good point @KateLM even after just 10k beta the doubling time will start to slow.
    For more info visit my blog: http://shockinglydomestic.com
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