Bro…

The pregnancy halo gotta be one of the most amusingly clever things to come out from blue archive.

I know it's just a gag, but don't you have to be conscious for a halo to appear. Also at what fetal stage do you get one? This looks like it could be the day after.

Oh_My said:

I know it's just a gag, but don't you have to be conscious for a halo to appear. Also at what fetal stage do you get one? This looks like it could be the day after.

Iirc sleeping, fainted and comatose girls also have halos?

Allaire said:

Iirc sleeping, fainted and comatose girls also have halos?

They don't. The halo turns off if the girl stops being conscious for any reason. If there were ever any doubts of this, the anime fully confirms it in the very first scene of Shiroko waking up in the morning.