Hey,
My LO has been breech for about 10-12 weeks now, I can't really remember, it was just after my anomaly scan... I felt the big movement and just knew he'd turned, and MW confirmed it at my 25 week appointment. Here I am now at 32 weeks and he's still breech!
I had my most recent appointment with MW about a week and a half ago and she said it's nothing to worry about just yet, and they don't even act on it until 36 weeks, when they start looking at options (i.e. ECV or c-section) because they still have plenty of time to turn. Between 36-37 weeks is when they'd to the ECV if you want it, otherwise it'd be a c-section from 37 weeks onwards. Or some hospitals will let you try for a breech birth, but quite a lot of hospitals don't like doing that.
Hope that helps, I wouldn't worry yet, you're only 29 weeks so you have aaaaages for LO to turn
xx