Why is IVF day one considered to be full flow *before* 12pm?

[Decaffe]

After six days of spotting (but that’s another thread ), my period has finally arrived.

Full flow is here in all its glory… but it started at 1pm or thereabouts.

On my apps, I am putting this down as day 1 of my cycle. 100%.

But my clinic say that because it started after 12pm, tomorrow must be day 1.

Does anyone know why this is?

It just seems really strange to me to be discounting today. I have full flow, I’ve had to wear a pad this afternoon, it’s definitely not spotting. But for the sake of an hour or two I can’t count today as the first day of my period?

Its always like this. Its just so they can time your medication right. I wouldn't read into it to much it is what it is 🙂

For me, that sounds really unusual. My clinic would definitely count that as Day 1 regardless of what time of day it is. Sounds like they're trying to manage their diary getting you booked in for the scan etc by bumping an extra day.