That reminds me of the old joke about the 3 pregnant women in the doctors waiting room.
The first says " I know that I am having a boy, becasue my husband was on top when we conceived"
The second says " I know that I am having a girl because I was on top when we conceived"
The third woman bursts into tears.
concerned, the other two ask what is wrong.
The third woman says "I think that I am having puppies"
Anyhoo - back to the topic - very good advice from all, main thing is though to try not to get stressed and enjoy trying.