Silly Question (TMI)

I feel kind of silly asking this but I would like to know...

After sex I lay with my hips propped up for 5-10 minutes. I heard that helps the spermies get to where they're going. But no matter how long I lay there some comes out when I stand up.

Is that okay? Or should I lay there longer? I feel like a Lot comes out and not enough is going to get to the egg...

Sorry if this is ridiculous...