Help I need advice!

So this might be a dumb question, but I’ve heard different things from different sources. Me and my hubby are ttc for the first time, is it true the whole “after baby dancing put your legs in the air to keep the sperm in longer to get a better chance at getting pregnant “or is that a myth?

Is it still possible to get a bfp if I just get up right after and go to the bathroom? Help I need the right advice.