estimated due date if you are 17 weeks pregnant today Thursday · second trimesterIf I'm 17 weeks pregnant today, when is my due date?
March 11, 2027
If you are 17 weeks plus a few days
Gestational age today Estimated due date 17 weeks 0 days Thu, Mar 11, 2027 17 weeks 1 days Wed, Mar 10, 2027 17 weeks 2 days Tue, Mar 9, 2027 17 weeks 3 days Mon, Mar 8, 2027 17 weeks 4 days Sun, Mar 7, 2027 17 weeks 5 days Sat, Mar 6, 2027 17 weeks 6 days Fri, Mar 5, 2027
Key figures
March 11, 2027estimated due dateJune 4, 2026implied first day of last periodJune 18, 2026implied conception (LMP + 14 days)Second trimesterstage161days until due date23 weeksweeks left17weeks pregnant todayBefore termACOG term label
If you are exactly 17 weeks pregnant today, Thursday, October 1, 2026, your estimated due date is Thursday, March 11, 2027. Working backwards, that means the first day of your last period was Thursday, June 4, 2026 and conception happened about Thursday, June 18, 2026. You are in the second trimester, with 161 days (23 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. ‘17 weeks pregnant’ therefore means 17 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 17 weeks pregnant today the remaining time is 161 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 ‘17 weeks pregnant’ means
How the due date is calculated
Important note
Today's date at a glance
How the calendar works
Thursday, March 11, 2027. About Thursday, June 4, 2026. About Thursday, June 18, 2026, 14 days after the first day of the last period. Second trimester. 23 weeks. 161 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 17 weeks pregnant today?
When did my last period start if I am 17 weeks pregnant?
When was conception?
Which trimester is week 17?
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 17 the same as 17 months?
Is this medical advice?