estimated due date if you are 20 weeks pregnant today Thursday · second trimesterIf I'm 20 weeks pregnant today, when is my due date?
February 18, 2027
If you are 20 weeks plus a few days
Gestational age today Estimated due date 20 weeks 0 days Thu, Feb 18, 2027 20 weeks 1 days Wed, Feb 17, 2027 20 weeks 2 days Tue, Feb 16, 2027 20 weeks 3 days Mon, Feb 15, 2027 20 weeks 4 days Sun, Feb 14, 2027 20 weeks 5 days Sat, Feb 13, 2027 20 weeks 6 days Fri, Feb 12, 2027
Key figures
February 18, 2027estimated due dateMay 14, 2026implied first day of last periodMay 28, 2026implied conception (LMP + 14 days)Second trimesterstage140days until due date20 weeksweeks left20weeks pregnant todayBefore termACOG term label
If you are exactly 20 weeks pregnant today, Thursday, October 1, 2026, your estimated due date is Thursday, February 18, 2027. Working backwards, that means the first day of your last period was Thursday, May 14, 2026 and conception happened about Thursday, May 28, 2026. You are in the second trimester, with 140 days (20 weeks and 0 days) to go. Pregnancy is dated from the first day of the last menstrual period, not from conception, so gestational age runs about two weeks ahead of the age of the embryo. ‘20 weeks pregnant’ therefore means 20 completed weeks since that first day. The table above shows how the due date moves by one day for every extra day of gestational age. The estimated due date is 280 days (40 weeks) after the first day of the last period, a method known as Naegele's rule. If you are 20 weeks pregnant today the remaining time is 140 days. The date is an estimate: only a small share of babies arrive on it, and an ultrasound dating scan may change it. This page performs date arithmetic only and is not medical advice. A healthcare provider sets the official due date and answers questions about how a pregnancy is progressing. Contact a provider or urgent care for anything that worries you. Today is Thursday, October 1, 2026. That is day 274 of 365 in 2026, in ISO week 40, with 91 days to go before the year ends. The next dates people plan around are Diwali on Saturday, October 10; Columbus Day on Monday, October 12; Halloween on Saturday, October 31. The moon is a Waning Gibbous tonight, with about 75% of its face lit. All of these figures are recalculated when the page loads, so they always describe the day you open it, not the day the page was published. The Gregorian calendar has twelve months of 28 to 31 days. A normal year has 365 days and a leap year has 366, with the extra day added to February in every year divisible by four except century years that are not divisible by 400. Because 365 is one more than 52 weeks, most dates move forward one weekday each year and two after a leap day. Weeks are numbered under ISO 8601, which starts weeks on Monday and gives week 1 to the week containing the first Thursday of January.The answer
What ‘20 weeks pregnant’ means
How the due date is calculated
Important note
Today's date at a glance
How the calendar works
Thursday, February 18, 2027. About Thursday, May 14, 2026. About Thursday, May 28, 2026, 14 days after the first day of the last period. Second trimester. 20 weeks. 140 days. Time since the first day of the last menstrual period. At 14 weeks. At 28 weeks. 39 weeks to 40 weeks and 6 days (ACOG). No. Pregnancy months are not a fixed number of weeks, so weeks are used for dating. No. Ask a healthcare provider.Frequently asked questions
What is my due date if I am 20 weeks pregnant today?
When did my last period start if I am 20 weeks pregnant?
When was conception?
Which trimester is week 20?
How many weeks are left?
How many days until the due date?
What does ‘weeks pregnant’ measure?
When does the second trimester start?
When does the third trimester start?
When is full term?
Is week 20 the same as 20 months?
Is this medical advice?