I had seen this movie when I was at a very young age, so I don't remember much except that I believe there were a group of scientists, astronauts or something of the sort because they were wearing suits. The aliens had kidnapped one of the females and she was unconscious; they had her on one of those chairs you see at the dentist. What they were trying to do was impregnate her. How they did it was by using a clear tube of some sort and transporting the eggs slowly through the tube into the woman. Unfortunately, that is all that I remember. It might have been an old movie, possibly in the 80's or early 90's.

Inseminoid (1981) (http://www.imdb.com/title/tt0084090/)