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Question about FMU

Stef33Stef33 member
in Trying to Get Pregnant
My cat woke me up this morning at about 4:30 am. I knew I was going to test this morning so I was trying not to go to the bathroom. Well there was no way I could've gone back to sleep without going. I went back to sleep until 7:30 am and slept fine. So now I want to test but I'm worried that it won't be accurate since I already went to the bathroom once today. I didn't eat or drink anything for about 5 hours before I went to bed, would that make a difference? Or should I just wait until tomorrow morning? I realize this isn't the the best question and I might sound a little ridiculous but I'm just wondering. Thanks!
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Re: Question about FMU

  • Ellis31Ellis31 member
    Do you know how many DPO you are? If you are only 9 or 10 I would definitely wait until tomorrow to test again first thing in the morning, the longer you wait the more chance you have to get an accurate reading on a pg. test. GL!
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  • DCchic610DCchic610 member

    The same thing has happened to me before where I wake up early in the morning (4AM or 5AM) and absolutely can NOT hold it and I've gone.  I didn't drink anything until I got to work and tested and I still would get a positive result on my OPK.   So it doesn't hurt to try testing still with the next bathroom trip.

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  • DCchic610DCchic610 member
    Oh ...wasn't sure if you were talking about OPK or pregnancy testing...
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  • megemoneymegemoney member

    From peeonastick.com:

    15. Do I have to test with my first morning urine (FMU)? Not necessarily. In general, FMU is the most concentrated urine of the day and thus more likely to have built up more hCG in it. If you are testing early (before 14 DPO), the HPT is more likely to detect the hCG in your FMU. After 14 DPO there should be enough hCG to be detected at any time of day. Some women have better luck with second morning urine (SMU.) A good rule of thumb: hold your pee for 3-4 hours (and drink as little as possible!) Then pee in a cup. If your urine looks nice and yellow, it's concentrated enough for testing (see FAQ 16 below for more info on peeing in cups vs. peeing on sticks.) If it looks diluted, dump it and try again later.

     

     

     ETA: wow C&P fail.

    Began TTC #1 in January 2011
    Confirmation and Removal of Endo - March 2012
    +#1 on 4/1/12 - m/c @ ~8w 5d
    +#2 Tx cycle 4 - 5 mg Letrozole + 75iu Follsitim & Ovidrel w/ IUI on 11/13/12 - EDD 7/23/13 
    7 week u/s revealed THREE babies, all with heartbeats.  153bpm, 148bpm, and 136bpm
    9 week u/s revealed loss of Baby B.  A and C are growing on track.  A measuring 9w1d with 172bpm and C measuring 9w0d with 179 bpm.  
    Elective sex determination u/s on 2/8 revealed... boy AND girl!
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  • Stef33Stef33 member
    Yea, I'm talking about HPT's. Right now I am 3 days late for AF so that puts me at 16-17 DPO
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  • megemoneymegemoney member

    imageStef33:
    Yea, I'm talking about HPT's. Right now I am 3 days late for AF so that puts me at 16-17 DPO

    Do you know that you are 16-17 DPO because you chart and you confirmed O by your thermal shift?  If you are truly 16-17 DPO, you should have enough hCG in your system to get a + now and not have to wait for FMU.

    Began TTC #1 in January 2011
    Confirmation and Removal of Endo - March 2012
    +#1 on 4/1/12 - m/c @ ~8w 5d
    +#2 Tx cycle 4 - 5 mg Letrozole + 75iu Follsitim & Ovidrel w/ IUI on 11/13/12 - EDD 7/23/13 
    7 week u/s revealed THREE babies, all with heartbeats.  153bpm, 148bpm, and 136bpm
    9 week u/s revealed loss of Baby B.  A and C are growing on track.  A measuring 9w1d with 172bpm and C measuring 9w0d with 179 bpm.  
    Elective sex determination u/s on 2/8 revealed... boy AND girl!
    Image and video hosting by TinyPic 
    Baby Birthday Ticker Ticker 
    Image and video hosting by TinyPic
    Report Reply
  • DChunt09DChunt09 member
    imagemegemoney:

    imageStef33:
    Yea, I'm talking about HPT's. Right now I am 3 days late for AF so that puts me at 16-17 DPO

    Do you know that you are 16-17 DPO because you chart and you confirmed O by your thermal shift?  If you are truly 16-17 DPO, you should have enough hCG in your system to get a + now and not have to wait for FMU.

    This.

    If you are really 16-17 dpo, that second line will turn pink no matter what pee you put on it. (If you are pregnant, that is)  

    Good luck!  


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