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When to Have a Gender Reveal Party (Timing Guide)

July 28, 2026 · 5 min read · The Revealcast Team

There's no single "right" week for a gender reveal — but there is a sweet spot most families land on. Here's how to choose a date that's early enough to feel exciting and late enough to be sure.

The short answer: right after the anatomy scan

Most parents find out the baby's sex at the anatomy-scan ultrasound, around 18–20 weeks. So the natural window for a party is the few weeks right after — roughly 18 to 24 weeks. That timing works because:

  • The result is confirmed, not a guess.
  • Many people are past the early-pregnancy fatigue and feeling good.
  • There's still plenty of runway before the third trimester gets busy.

Not sure where you are in the count? Our free due date & reveal-date calculator estimates your due date from your last period and shows the ideal reveal window.

Want to know sooner?

A NIPT blood test can indicate the baby's sex from about 10 weeks. Some parents use that to reveal in the first trimester. If you go this route, confirm the result with your provider before you build a party around it — and know that a very early reveal means sharing the news before the pregnancy is widely known, which is a personal call.

Picking the actual date

Once you know your window, a few practical tips:

  1. Pick a weekend. Easier for guests, and less rushed for you.
  2. Mind the time zones. If family is joining from far away — or online — choose a time that works across the map and share it clearly (date and time). This matters a lot for a virtual reveal.
  3. Leave a buffer after the scan. Give yourself a week or two to plan rather than scrambling the day after your appointment.
  4. Avoid holiday chaos unless the holiday is the theme.

A note on seasons

Your window might land in summer (backyard, bright colors) or deep winter (cozy indoor, a reveal on the TV). Either works — just lean your theme into the season.

Keep it flexible

Ultrasound timing shifts, life happens, and that's fine. The reveal is about the moment, not a perfect date. When you're ready, start your reveal — guests guess from their phones and the answer plays on the big screen, whenever the day lands.

Frequently asked questions

How many weeks pregnant for a gender reveal?

Most parents host a gender reveal between about 18 and 24 weeks — right after the anatomy-scan ultrasound (usually 18–20 weeks) confirms the baby's sex. If you'd rather know sooner, a NIPT blood test can indicate sex from around 10 weeks.

When is the best time to have a gender reveal party?

The sweet spot is the few weeks after your anatomy scan — late enough to know for sure, early enough that the pregnancy is usually comfortable. Pick a weekend that works across your guests' schedules and time zones, and share a clear date and time so far-away family can plan around it.

Can you have a gender reveal before 20 weeks?

Yes. A NIPT blood test can indicate the baby's sex as early as about 10 weeks, so some parents reveal in the first trimester. Just confirm the result with your provider before you plan the party.

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