Hi Nay,
Transition is known as the time between the first and second stages of labour. It is experienced differently by different women and differently by the same women in different labours!!! (is that confusing???...)

For me it is the most painful time in my labour and one where I can't find a position I feel comfortable in - I feel "lost" and have said that "I just want to go home now". I retreat into myself and cannot stand anybody touching me or talking to me at this time.

Some women get very agitated verbally and emotionally and some become introverted. Some women pass very quickly through this time and barely register a difference.

Somewhere amongst this your mind and your body make the decision that it's time for second stage and pushing....

You will experience transition in your own way and probably only later on reflection will recognise "aaahhh so that was transition..."

Good luck with your labour - I am sure it will be beautiful ...