Due in May 2027: when did I conceive?

If your baby is due in May 2027, you most likely conceived between August 8, 2026 and September 7, 2026. Find your due date in the table.

Likely conception: August 8, 2026. First day of the last period: July 25, 2026.

Open the full calculator for this date

Conception date for every due date in May 2027

Due dateConceivedLast period started
May 1Aug 8, 2026Jul 25, 2026
May 2Aug 9, 2026Jul 26, 2026
May 3Aug 10, 2026Jul 27, 2026
May 4Aug 11, 2026Jul 28, 2026
May 5Aug 12, 2026Jul 29, 2026
May 6Aug 13, 2026Jul 30, 2026
May 7Aug 14, 2026Jul 31, 2026
May 8Aug 15, 2026Aug 1, 2026
May 9Aug 16, 2026Aug 2, 2026
May 10Aug 17, 2026Aug 3, 2026
May 11Aug 18, 2026Aug 4, 2026
May 12Aug 19, 2026Aug 5, 2026
May 13Aug 20, 2026Aug 6, 2026
May 14Aug 21, 2026Aug 7, 2026
May 15Aug 22, 2026Aug 8, 2026
May 16Aug 23, 2026Aug 9, 2026
May 17Aug 24, 2026Aug 10, 2026
May 18Aug 25, 2026Aug 11, 2026
May 19Aug 26, 2026Aug 12, 2026
May 20Aug 27, 2026Aug 13, 2026
May 21Aug 28, 2026Aug 14, 2026
May 22Aug 29, 2026Aug 15, 2026
May 23Aug 30, 2026Aug 16, 2026
May 24Aug 31, 2026Aug 17, 2026
May 25Sep 1, 2026Aug 18, 2026
May 26Sep 2, 2026Aug 19, 2026
May 27Sep 3, 2026Aug 20, 2026
May 28Sep 4, 2026Aug 21, 2026
May 29Sep 5, 2026Aug 22, 2026
May 30Sep 6, 2026Aug 23, 2026
May 31Sep 7, 2026Aug 24, 2026

These are estimates: conception usually happens around ovulation, and babies arrive at different times. An early ultrasound gives the most accurate dates.

Key dates for a pregnancy from the middle of May 2027

  • Nuchal translucency (NT) scan window: Oct 25 – Nov 14, 2026
  • Anatomy scan window: Dec 13, 2026 – Jan 16, 2027
  • Third trimester begins: Feb 21, 2027
  • Full term: May 9 – 22, 2027

About May 2027

Babies due in May 2027 were mostly conceived in summer in the northern half of the world (winter in the southern half).

Questions about a May 2027 due date

If I’m due in May 2027, when did I conceive?

Most likely between August 8, 2026 and September 7, 2026, about 38 weeks (266 days) before each due date. Find your due date in the table above to see your day (ACOG).

When did my last period start if I’m due in May 2027?

About 280 days (40 weeks) before the due date: between July 25, 2026 and August 24, 2026. For example, a due date of May 16, 2027 means the last period started around August 9, 2026 (ACOG).

If I’m due on May 16, 2027, did I conceive on August 23, 2026?

Not always on that exact day. Conception usually happens around ovulation, and ovulation can come earlier or later in a cycle. An early ultrasound gives the most accurate dates, so ask your midwife or doctor (ACOG).

Other months

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