March 2012 Moms

Preterm Labor Test & Sex

Today at my 32 wk.appointment, the doctor did a fetal fibronectin test to detect preterm labor since I've been having so many BH contractions.  She asked if I had intercourse in the last 24 hrs and I said no.  However, afterward my husband reminded me we didn't have intercourse, but we did "fool around" and he used his fingers on me.  I know intercourse can cause the test to be inaccurate and now I'm wondering if I should have let her know about the other sexual activity...I don't know how sex affects the test.  Have any of you had this test?  Any idea why sex affects it? 
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Re: Preterm Labor Test & Sex

  • I think it is a couple different things.

    1. something in semen can cause preterm labor (don't remember exactly how)
    2. orgasms can make the uterus start contracting, which may look like actual contractions

    I haven't had this test yet and I don't know if my dr does it.  I would maybe call your dr's office and ask the nurse if it matters.

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  • imageKatieMarie27:
    1. something in semen can cause preterm labor (don't remember exactly how)
    2. orgasms can make the uterus start contracting, which may look like actual contractions

    semen can soften the cervix.

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  • Ok thanks...good to know!

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