Am I being stupid?

[erja]

So...
On the first day of your period is the first day of your cycle, which is when they track pregnancy from, so 9 months + 1 weeks from the first day of your last period?
What about if you're coming off the pill? Is it the day you come off the pill? Or the first day of your withdrawal bleed?

Anyone?

Neither. You have to wait for a proper period.

If you fall pregnant before a 'proper' period, they will require a dating scan.
Also, if your periods don't fall into the neat 28-day cycle, a dating scan may give a different EDD to what you may have thought.

It’s more difficult then which is why they advise one normal cycle before TTC. Otherwise they can date you from your first scan.

Impatient bumping! Give people a chance.

When you come off the pill, it generally takes a while for your cycle to settle down anyway.

Thank you everyone!