Roughquest,
Here's how it works: Fertilization happens in one of the fallopian tubes, which carries an egg from an ovary to the uterus. It can take up to seven days after intercourse for sperm and egg to join and become a fertilized egg. Usually, it's because the sperm gets into the fallopian tube before the egg is released.
Sperm can live in the vagina, cervix, uterus and fallopian tubes for up to five days. Only a few hundred of the 250 million healthy sperm reach the egg. It takes about two hours to make the entire journey to the egg; however, some sperm are Olympic swimmers and can reach the egg in a half an hour. If no egg is available to fertilize, the sperm swim around patiently waiting to bump into one. Because there is no chemical or physical attraction of the sperm for the egg, the sperm literally must bump into the egg.
But do me a favour make sure your sperms don't have satnav otherwise the may take the long route and may also tell you to "turn around and take the next left" if you miss a turning lmao
Mr T. A crazy fool