I’ve been keeping two female hissing cockroaches as pets for about a month now. I bought them from a breeder, and received two adult females. I’ve sexed them and the appear to both be girls, but earlier today I noticed what looked like an egg sack in the enclosure. I’m so confused as to how one of my roaches became pregnant in the first place?? My current theory is that she was pregnant when I got her but I’m still not sure. I also don’t want babies at all (why I only got two females) so I’m worried about future pregnancies even though they are both girls.