Ok.. so my two female pups (pug/rat terrior mix) that I rescued in May were barely 6 weeks old.. if that. They wouldnt take solid or canned food.. they wanted milk so I'm guessing they were still about 5 weeks. Anyways.. as they got bigger I inquired about getting them both spayed since mom let me keep them and they stayed in our yard and turned into wonderful pets. Well, at that point the vet said they were too young to be spayed. So I waited. I noticed some of their baby teeth were falling out and being replaced with permanent.. so I thought maybe that meant they were old enough so I called and he said no.. Ok.. so i waited.. I never noticed eithier of them go into a single heat cycle.. no change in behavior, no discharge, swelling....etc. So I became less worried and was planning on doing it last month. Well then ran into money problems.. being a college student and all.. parents really couldnt help me at that point eithier... so I was going to wait for our humane society to have another free or atleast cheap spay and neuter day. Well I've noticed lately that one of the pups (LuLu) teats were a little enlarged and her private area almost swollen looking. she never acted any different and the other pup (Tinkerbell) is fine. Lulu is a little bigger than Tinkerbell and is just overall more developed.. I was wondering if LuLu is pregnant. I know it's totally possible.. but I was researching and getting conflicting articles... and what about Tinkerbell? I mean they are never seperated.. I'm just confused.