Trying to find a movie title.?

When I was little, I watched a movie with my dad. I was maybe 7 or 8. I'm now 23 as of 2011. So this is an older film. I don't remember much from the movie but I do remember that it had something to do with "a small vehicle or spaceship traveling through a womens' body". In the end you find out that the women is pregnant. I also can't remember if this is apart of the same film, but I believe somewhere in it there was a man and women fighting. I think I remember a lamp being thrown. The fight took place in like a living room and kitchen. I think this movie is more of a sci-fi type of movie. But honestly, I'm not sure. This could also be maybe a tv series, but I'm pretty sure its a movie. Any help would be greatly appreciated. Thanks!