Cramps (Not PMS/AF)

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

Cramps (Not PMS/AF)

Cramps in early pregnancy are not only common but very normal. Some women feel cramping as early as implantation when the embryo attaches itself to the uterus (6-12 days after ovulation). Others may start cramping after their first positive pregnancy test as their uterus starts preparing to carry a baby for nine months. The uterus grows quickly in early pregnancy and cramping is expected.

Some women report the cramps they experience in very early pregnancy are quite different from their usual PMS or menstrual cramps. Others say they are similar to the cramps they experience just prior to or during menstruation (and some may dismiss them as their impending period), or feel like mild pressure, or quick sharp pains.

If you are experiencing any pain that does not seem "normal" or that is very painful, you should consult your doctor, especially if they are accompanied by bleeding.

Includes: Cramps that feel different than PMS or period cramps.


Summary of chart

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

0 dpo - 1 dpo

Does not significantly affect probability of pregnancy

2 dpo - 3 dpo

Slightly decreases probability of pregnancy

4 dpo - 10 dpo

Does not significantly affect probability of pregnancy

11 dpo - 16 dpo

Slightly increases probability of pregnancy

17 dpo - 18 dpo

Does not significantly affect probability of pregnancy


Detailed breakdown by DPO

Shows data for days where differences are meaningful.

Day past ovulationPregnant vs non-pregnant
12 dpo 1.3 times more (+22%)
13 dpo 1.3 times more (+28%)
14 dpo 1.3 times more (+29%)
15 dpo 1.3 times more (+24%)
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.

OhBoyOrGirl  4 years ago
12dpo had no feeling of PMS no cramps, no nothing! Good sign hoping xx

OhBoyOrGirl  4 years ago
5dpo having cramping feeling in lower abdomen & my lower back.

peonies2107  5 years ago
Dull/mild back cramp 9-11dpo, and lower right ovary dull cramp/pinching that is constant from 9-13dpo (today) + sore breasts starting 12dpo

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