Frequent Urination

Early pregnancy symptom

The chart

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




About this symptom

Frequent Urination

A very common early sign of pregnancy is more frequent trips to the washroom. During pregnancy the amount of blood and fluids increases, this leads to additional fluids being processed by your body, passing through your kidneys and then to your bladder. Also as pregnancy progresses, the increased size of the uterus begins to put pressure on your bladder. This symptoms will likely continue throughout your entire 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 - 10 dpo

Does not significantly affect probability of pregnancy

11 dpo - 13 dpo

Slightly increases probability of pregnancy

14 dpo

Increases probability of pregnancy

15 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
12 dpo 1.2 times more (+19%)
13 dpo 1.3 times more (+26%)
14 dpo 1.4 times more (+31%)
15 dpo 1.3 times more (+26%)
16 dpo 1.2 times more (+16%)
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.

AlphaMa  2 years ago
12dpo and cannot go more than 30 minute between pit stops.

SaintGalahad  5 years ago
17dpo and I’m getting up at night every 2 hours to use the bathroom. During the day it isn’t so bad but at night I can’t sleep it’s so often

Sreeparna  6 years ago
13 dpo. For last 2 days every 1 hour need to urinate.

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