First Response/ ERP

Hillary • Wonderful🤴 + 2 beautiful stepsons 👦👦 = 👨‍👩‍👦‍👦 1 sweet angel 👼 TTC rainbow baby #1 🌈👶

When it says to take the test five days before your period is supposed to start, does that mean 5 days before your period starts, or 4 days before your period starts and the first day of your period counts as the 5th day?

This is probably a dumb question, but I want to make sure I’m testing correctly!