Increased Breast Size
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
increases
the probability of pregnancy
Overall (during the luteal phase)
experiencing this symptom
does not impact
the probability of pregnancy
About this symptom
Increased Breast Size
The swelling of the breasts in early pregnancy is due to the increase of hormones which cause increased blood flow to the breasts to begin the preparation for breastfeeding. The breasts may increase by a full cup size in just the first 12 weeks 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 - 12 dpo
Does not significantly affect probability of pregnancy
13 dpo - 14 dpo
Slightly increases probability of pregnancy
15 dpo - 18 dpo
Increases probability of pregnancy
Detailed breakdown by DPO
Shows data for days where differences are meaningful.
| Day past ovulation | Pregnant vs non-pregnant |
|---|---|
| 14 dpo | 1.3 times more (+22%) |
| 15 dpo | 1.4 times more (+31%) |
| 16 dpo | 1.4 times more (+40%) |
| 17 dpo | 1.5 times more (+48%) |
| 18 dpo | 1.6 times more (+51%) |
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.
Comments
What women are saying about this symptom.
Ladychey123 2 years ago
My breast look a lil bigger 11dpo
OhBoyOrGirl 4 years ago
7dpo very tender sore swollen breast, started 2dpo also a burning feeling too!
peonies2107 5 years ago
Actually bought a bra size c, usually wears a size b.
