Strong Smelling Urine

Early pregnancy symptom

During early pregnancy urine may become darker in colour and/or have a stronger or different smell than usual – be sure to drink plenty of water (at least 8 glasses a day). If you are experiencing any pain you should speak with your doctor as it could also be a sign of a urinary tract infection. This change in smell or strength may also be due, in part, to an increased sense of smell some women experience in very early pregnancy.

Includes: Strong or foul smelling or if the odour is unusual for you



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
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 - 11 dpo

Slightly decreases probability of pregnancy

12 dpo - 16 dpo

Does not significantly affect probability of pregnancy

17 dpo - 18 dpo

Slightly decreases probability of pregnancy


Detailed breakdown by DPO

Shows data for days where differences are meaningful.

Day past ovulationPregnant vs non-pregnant
0 dpo 1.3 times less (-17%)
1 dpo 1.3 times less (-21%)
2 dpo 1.3 times less (-21%)
3 dpo 1.3 times less (-21%)
4 dpo 1.2 times less (-15%)
8 dpo 1.2 times less (-14%)
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.

Jessesgirl910   12 weeks ago
So gross! This was my first real sign. I’ll even wait a sec b4 leavin a stall to spare the next person from my funk. Lol

EMGreen  5 months ago
At 8 dpo I noticed this weird strong smell. Way different than UTI or anything else.

WildFlower3  7 months ago
5dpo smelled a the most bizarre urine odor. Never smelled off in my life & this almost made me gag. Can't identify what it smells like.

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