Can you make children during sex under water?

Sure, but. . . Sure, having sex underwater can create a cute little baby, but it doesn't mean he'll swim any better than if he was created on dry land. As long as some healthy sperm manage to swim through her cervix, she can get pregnant. However, if too much water gets into her vagina and mixes with his semen, the sperm might have trouble swimming up through her cervix, or have trouble enduring all that water.