Relax!You're way too early for an external version IMO, and they can apparently be dangerous and painful later in pregnancy. Do some research on that - I have heard horror stories of broken bones, bruises, etc. to baby.
"Statistically", baby's are considered breech if they are not head down by about 36 weeks or so, you have lots of time. Baby's bop all over the place before then.
If, by 35 weeks or so he is still breech, there are lots of suggestions for turning your baby naturally; talk to your baby, tell him/her that it's ok to turn and settle in to a natural birthing position; try sitting in a warm bath covering the lower belly with ice pack on your upper belly (baby apparently turns away from the cold for the warm); the most common midwife suggestion - put earphones with nice music on your lower belly - baby apparently moves it's head towards the sound...there are lots of things to try. I personally had GREAT success with a local Chiropractor who does the Webster technique, (their office has a 92% success rate of turning breech babies right up until labour).
But worring about this now is kind of a waste of stress IMO, as your baby will probably turn back and forth - possibly many times - between now and 36, 37 weeks so no real point in trying to "get" him/her turned before then.
My guy was breech up until a few days ago (I'm 37 1/2 weeks). My midwife told me that after 36 weeks or so, it's "rare" for a baby to turn, but I was optimistic. I had one chiro treatment 3 days ago, (Webster technique) my pelvis realigned (apparently - whatever happened, it felt great - like a hugh relief of pressure), and within hours babe was not only head down but he dropped down low in to my pelvis in to the "optimal" birthing position, (acc to my midwife).
I told 3 people that my guy was breech last week. The first, my boss, said "Yeah, my first was breech and my doctor told me he wouldn't turn after 35 weeks, but 2 days before my due date I was sitting on the couch and felt him turn. I was almost 40 weeks and had a normal delivery".
The second, my sister, said, "Yeah, so was DS2, but he turned when I was in labour".
The third, a coworker, said, "Yeah, my eldest was too but she turned at 39 weeks...".
And as I said, my guy just turned at 37 1/2 weeks.
So it can't be that rare!
I know 2 other mamas who had breech babies who listened to their docs and went in for a c-section 2 weeks before their due date (at 38 weeks) b/c their doc said babe won't turn now. Don't believe it!!!
... And I can't say HOW impressed I was with the chiro treatment - I highly recommend it. HTH!!