aww inshallah i hope you find her!!
a few years ago i had a cat that got lost too. we still dont know what happened to him. i cant imagine him running away cuz we had him for 11 years and he was born in my house. and he stayed a few summers in our backyard/garage while we were overseas (someone would come to feed him of course) and would be right there waiting when we got back. after all that i dont think he'd run away but we have no idea what happened to him.
cats definitely do go off and find a quiet place to give birth, so thats probably what your cat is doing...hopefully she'll be back soon with her babies!
