Tender Breasts (Underarms)

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
the probability of pregnancy




About this symptom

Tender Breasts (Underarms)

Swollen or tender breasts are pregnancy symptoms which can begin very soon after conception. This might be your first clue that you are pregnant! Some women report that they feel it most in the sides of their breasts or under arms. Some describe it as affecting the entire breast. Increasing levels of hormones cause increased blood flow and changes to the breast tissue. As milk ducts and milk-producing cells develop your breasts may feel swollen, tender or very sensitive to touch. You may also feel tingling, throbbing, burning sensation or itchiness. Your breasts may also grow in size, feel heavy or change in shape.

As your body adjusts to the new surge of hormones the pain should subside. Soaking in a warm bath may help alleviate some discomfort, and consider sleeping in a comfortable bra. As your breasts change in size be sure to always wear a well-fitting supportive bra. It is recommended you have your bra professional fitted.

Includes: Painful sensations but isolated to the sides of the breasts and/or under the armpits


Summary of chart

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

0 dpo - 2 dpo

Slightly increases probability of pregnancy

3 dpo - 12 dpo

Does not significantly affect probability of pregnancy

13 dpo - 16 dpo

Slightly increases probability of pregnancy

17 dpo - 18 dpo

Increases probability of pregnancy


Detailed breakdown by DPO

Shows data for days where differences are meaningful.

Day past ovulationPregnant vs non-pregnant
14 dpo 1.2 times more (+18%)
15 dpo 1.3 times more (+24%)
16 dpo 1.3 times more (+28%)
17 dpo 1.4 times more (+36%)
18 dpo 1.5 times more (+42%)
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.

member_58252  4 years ago
Don t really know dpo but cycle day 22 bbs soreness and tenderness under arms started today

peonies2107  5 years ago
14dpo, breast still sore/tender and feel bigger. I reported the same symptom last cycle, but af showed up. Hoping for a bfp this time!

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

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