The short answer
19 weeks = 5 months
At 19 weeks pregnant, you are about 5 months pregnant — in month 5 of your pregnancy and in your second trimester.
Not sure of your week? Use the pregnancy week calculator to find it from your last period, due date or conception date.
A protective, waxy coating called vernix caseosa is starting to cover the skin, shielding it from the amniotic fluid.
About the size of a mango
size comparison
15.3 cm
crown to rump (6.0 in)
240 g
average weight (8.5 oz)
The brain is designating specialized areas for smell, taste, hearing, vision and touch. In girls, the ovaries already hold roughly six million immature eggs — the peak number they will ever have. Hair is sprouting on the scalp, and the kidneys are producing urine that becomes part of the amniotic fluid.
Sizes and weights are averages — healthy babies vary widely, and your scan measurements are what count.
Hip and pelvic aches, especially at night, are typical as ligaments loosen under the hormone relaxin. Some people notice a faint tingling or numbness in the hands from fluid retention. Skin can develop patches of pigmentation that usually fade after birth.
Common symptoms this week
147
days to go
21
weeks to go
133
days so far
At 19 weeks 0 days you are 133 days into a 280-day pregnancy, which leaves 147 days — 21 weeks — until 40 weeks. That number drops by one for every day you move through this week. Remember the due date is an estimate: only about 1 in 20 babies is born on it, and most arrive within two weeks on either side.
Next milestone: 7 days until the halfway point (20 weeks 0 days).
A calendar month averages about 4.3 weeks — not 4 — so you can't just divide your week number by four. Instead, months of pregnancy are counted as uneven buckets of 4 to 5 weeks, arranged so the full 40 weeks fits into 9 calendar months. Week 19 falls in month 5, in the second trimester.
Your care team will always use weeks and days rather than months, because screening windows and term definitions are set by exact week — months are just the everyday shorthand. For the full conversion, see the weeks to months chart, or go the other way with the months-to-weeks guide.
Your notes will show a week and a day — 19+3 or 19w3d, for example. Pick the exact day you are on for its own day count, countdown and month answer.
| Week + day | Shorthand | Days pregnant | Days to go |
|---|---|---|---|
| 19 weeks 0 days (this page) | 19+0 | 133 | 147 |
| 19 weeks 1 day | 19+1 | 134 | 146 |
| 19 weeks 2 days | 19+2 | 135 | 145 |
| 19 weeks 3 days | 19+3 | 136 | 144 |
| 19 weeks 4 days | 19+4 | 137 | 143 |
| 19 weeks 5 days | 19+5 | 138 | 142 |
| 19 weeks 6 days | 19+6 | 139 | 141 |
At 19 weeks pregnant, you are about 5 months pregnant — in month 5 of your pregnancy and in your second trimester. Months of pregnancy are counted as uneven 4–5 week buckets so that the full 40 weeks fits into 9 calendar months.
19 weeks is in the second trimester, which runs from 14 weeks 0 days through 27 weeks 6 days. The third trimester begins at 28 weeks 0 days.
About 21 weeks until the 40-week mark — though only about 1 in 20 babies arrives exactly on the due date. Most are born within two weeks on either side of it.
At 19 weeks 0 days you are 133 days into a 280-day pregnancy, so there are 147 days left until the 40-week mark — that's 21 weeks. The count drops by one for each day you move through week 19.
19 weeks is 133 days, counted from the first day of your last menstrual period (19 × 7 = 133). Add the days into your current week for the exact figure — for example 19 weeks 3 days is 136 days.