01/22/2026
Is it Day 1 of your IVF cycle yet? 🩸 Understanding the "4 PM Rule" is a game-changer for your baseline scheduling and medication timing.
When you’re on an infertility journey, every day counts. But identifying the official start of your period for a can be confusing—especially with early spotting.
The Checklist: > ✅ Day 1 (Full Flow): Requires a pad/tampon. ❌ Spotting: Just a smear/spot. This is NOT Day 1.
The 4 PM Rule: > 🕒 Before 4 PM: Today is Day 1. 🕒 After 4 PM: Day 1 is officially TOMORROW.
Why this matters: Accurate reporting ensures your or starts on the exact right biological window.
Early bleeding can be brown or pink. If you're unsure, track the color and call us! We are here to help you get the protocol exactly right.
Save this for your next cycle! 🔖 . .