Which tense and word to choose from?

Could you tell me which tense and word to choose from?

If you were/are to give birth today, make sure it is/was when I am around.

I love the feeling/sensation where...

He is so short that his feet don't touch/reach the ground when he is sitting.

It is amazing how/that people feel scared when they are in this neighborhood.

If I [am going to] lose, I hope he wins.

Thanks