When does baby flip upside for birth?

Hey all, just wondering if anyone could shed some light on this subject, when I went to my 26 week appointment my midwife told me that the baby was breech but not to worry as there is plenty of time for turning, I am now 30 weeks and I feel like he is still breech (all kicks are low down) 
Is there a certain stage where they expect the baby to be in the birth position?