in Week 10 vs at Week 10

[Haru56]

Is there the difference between the following sentences?

1) I’m pregnant in Week 10.
2) I’m pregnant at Week 10.

I think…
1) I’m somewhere between the first and last days of the 10th weekk of pregnancy.

2) I’m on the last days of the 10th weekk of pregnancy.
It means that it’s been 70 days since I got pregnant.

[Rover_KE]

I'd say 'I'm 10 weeks pregnant'.

The precise day of conception can rarely be determined with any accuracy.

Rover
(Not an obstetrician)

[5jj]

I'd say 'I'm 10 weeks pregnant'.

If you did, Rover, I'd believe in miracles.

[emsr2d2]

I'm in my tenth week of pregnancy.
I'm ten weeks' pregnant.
I'm ten weeks' gone.

[Haru56]

Thank you for your replies.

But I just want to know the difference between IN and AT.

My sample sentences may not be appropriate.



Is there the difference between IN week 10 of pregnancy and AT week 10 of pregnancy?

Both expressions "in week X" and "at week X" are often seen in the same medical report.

[emsr2d2]

Maybe in the context of a medical report they're acceptable, but I would use neither in standard writing.