Hi all, I am new to the forum and have 2 beautiful british shorthair boys. We just got our second kitten about 3 weeks ago. I was looking at the breeders website this morning and noticed she has another kitten available who has the same dam and sire as mine. And this one is only 9 weeks and 1 day older than my kitten. Is this possible? I thought a cats pregnancy lasted 8 or 9 weeks.