First time mom..

I don't know what I'm having at all yet since I'm only 5 weeks and 3 days. But the answer to this question has seriously been bothering me... Please no rude comments.. 
But how do you wipe your son after he pees.. I've never seen it done before... Please don't be rude or say I'm stupid.. I just need to know just in case I have a boy..
Does no one know???