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Very Early Pregnancy Symptom

Symptom Details

Heartburn is typically associated with later pregnancy as the baby grows and takes up more and more space in the abdominal cavity, but the hormones produced in early pregnancy can also cause heartburn. Progesterone, which relaxes the smooth muscles of the uterus, may also relax the valve between the esophagus and the stomach, allowing stomach acid to travel back up to the esophagus, causing heartburn even in early pregnancy.

Comparison Chart

The chart below shows a comparison between the number of times this symptom was experienced by pregnant vs non-pregnant women.

**NOTE: Data for 15-21 dpo tends to be lower than expected as many women stop tracking symptoms after a positive pregnancy test.

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Are you experiencing Heartburn?

What Day Past Ovulation are you? Is this a new symptom?
  • 5 weeks ago » swarna85 said:
    10 dpo experiencing a bad heart burn
  • 6 weeks ago » eskimozie said:
    horrible heartburn this morning. I didn't have it all night. BFN, but only 11 DPO so still hopeful.
  • Apr. 7, 2016 11:41pm » Kendragon0927 said:
    10 dpo. I had some honey BBQ sauce and am seriously regretting my life choices right now.
  • Mar. 31, 2016 11:46am » LilyLight said:
    I can't remember the last time I've had heartburn. No diet change and suddenly the fires are a'burnin! I can hardly sleep.
  • Feb. 26, 2016 10:36am » cassmac1115 said:
    10 dpo and noticed very sudden heartburn...didn't eat dinner last night and had fruit for breakfast... hopefully pregnancy is the cause.
  • View All Comments...

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