A year+.
But, we really don't know how long it takes a Talokian to gestate, especially a Mallor, who's a Shadow Realm Nexus.
(Is she one in this boot, by the way?)
Fainting in our species is usually early in the cycle, too.
It might not be Kirt's, either.
If she were pregnant, that is.
Or like I've guessed before, Mallors might be able to hold sperm/eggs in a stasis, until they decide to become pregnant. There are species, I think, that can do that on Earth and it's certainly been done in literature and TV.