Fertilisation Quistion (Jodie Foster)

I just saw this film, Jeunet is a great artist!

I was just wondering about a thing in the Jodie Foster scenes. She has to have sex with a fertile man, to try to save her husband from the war. I have seen this concept in other movies and books before, with various circumstances. Childlessness, gay couples etc. But isn't there a much simpler and non-complicated solution to this problem?

Isnt it possiple for a woman to get pregnant by artificial insemination with simple primitive methods at home, if she has a fresh able sample of sperm at hand? It must be simple tools you need for that kind of operation, am i right? It could have saved their marriage of its jealousy problems.

But them again, i think Jodie character enjoyed the good shagging ;)