Food Aversion

Early pregnancy symptom

A large majority of women will experience some kind of food aversion during pregnancy, and very often in the first trimester. Food aversions may have many causes, including hormonal changes, increase sense of smell and nausea. Some experts believe some aversions are the result of the body attempting to protect the fetus by preventing the mother from eating foods that may be contaminated with food bourne pathogens such as seafood, or preventing them from eating or drinking unhealthy foods like coffee and alcohol. Although many women also experience aversions to healthy foods such as protein and vegetables. These aversions generally diminish after the first trimester but may not completely disappear until the baby is born.



Comparison of how often this symptom is experienced by pregnant vs non-pregnant women.


After implantation (9 dpo+)
experiencing this symptom
the probability of pregnancy


Overall (during the luteal phase)
experiencing this symptom
does not impact
the probability of pregnancy





Summary of chart

An explanation of the affect on the probability of pregnancy for each day past ovulation or group of days.

0 dpo

Decreases probability of pregnancy

1 dpo - 6 dpo

Slightly decreases probability of pregnancy

7 dpo - 10 dpo

Does not significantly affect probability of pregnancy

11 dpo - 18 dpo

Slightly increases probability of pregnancy


Detailed breakdown by DPO

Shows data for days where differences are meaningful.

Day past ovulationPregnant vs non-pregnant
0 dpo 1.5 times less (-30%)
1 dpo 1.3 times less (-21%)
2 dpo 1.3 times less (-18%)
12 dpo 1.2 times more (+19%)
13 dpo 1.2 times more (+20%)
Understanding the data

Pregnant women experience this symptom the number of times listed as often as non-pregnant. The percentage listed refers to the percentage increase or decrease between pregnant and non-pregnant.

Visit the dpo chart pages to view most common and significant positive and negative indicators of pregnancy for each day past ovulation.




What women are saying about this symptom.

Baby_Dreams8285  5 months ago
15 dpo and the thought of eating sweets turns my stomach even though I'm a sugarholic

Timpani  8 months ago
11dpo. Chicken just tasted really off. Maybe it was?! Or maybe something else!

MissEgardner  1 year ago
Use to like eggs but now the smell and look of them make me feel sick

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