OK I know this is a really weird question but my friend and I are having a small argument over it. So say there is a young girl and she has been fully through puberty except the fact that she has never had her first period. NO PERIOD AT ALL, EVER! Then someone puts a matured egg (with sperm already in it) into her womb, first off would it connect and second of all is this possible? Now just saying that it is possible, would her body be able to carry the child? Like would her womb be developed enough to expand the length of the child and could she actually give birth?

And if the scientist who put the egg in her did it with out her permission, could she press charges and could he go to jail for it? And would there be any health issues along with this, if so what?

Fully through puberty without period. Would probably depend on Medical reason why no period. Scientist puts egg in her (without permission?) The only 'logical' part I see is her womb development would not have anything to do with womb development. I know 13 year olds that have had babies. Not sure pre pub with no period can but history has birth moms recorded as young as 6 years old.

"Fully through puberty" would only mean she had ovulated and had a period.

Though your questions are some of the strangest I've probably ever heard, I'd say in theory she'd be able to carry the child. Yes, the "scientist" could go to jail and yes there could be health concerns as with any pregnancy. The list of potential health (or legal) issues are immeasurable.

Oops I meant her womb development would have nothing to do with periods.