15 weeks pregnant: the key facts
| Trimester | Second trimester |
|---|---|
| Month of pregnancy | Month 4 (approximately) |
| Week of pregnancy | Week 16 (15 weeks completed) |
| Weeks to the due date | 25 weeks |
| Days since conception (approx.) | 91 days |
| Baby’s size (rough comparison) | About the size of an apple |
What typically happens at 15 weeks
Second-trimester blood screening (such as the quad screen) is commonly offered between about 15 and 22 weeks.
The second trimester is often the most comfortable stretch. Energy usually improves, the bump becomes more noticeable and movements become easier to feel as the weeks go by. At 15 weeks there are about 13 weeks until the third trimester starts at 28 weeks.
Every pregnancy is different, and the timing of tests and appointments depends on your healthcare provider and country. If something worries you — for example bleeding, severe pain, fluid leaking or, later in pregnancy, a change in your baby’s movements — contact your midwife, doctor or maternity unit straight away.
15 weeks pregnant in days and months
15 weeks is 105 days of pregnancy, counted from the first day of the last period, which is 38% of the way through a 40-week pregnancy. In months, 15 weeks is roughly 3.4 calendar months — usually described as month 4 of pregnancy. Because the baby’s age is counted from conception, it is about two weeks younger than the pregnancy: roughly 13 weeks of fetal age.
Your dates if you are 15 weeks pregnant today
Being 15 weeks pregnant today means the first day of your last period was around and conception most likely happened around . Your estimated due date is , and you will reach full term (39 weeks) around . For dates based on your actual period, use the calculator above or the main Due Date Calculator.
Other weeks
13 weeks pregnant · 14 weeks pregnant · 16 weeks pregnant · 17 weeks pregnant · full pregnancy timeline