I have been a happy Diva cup user for many years and have the size 1. I just read on their website that they recommend getting the size 2 when you are over 30 (seriously, why?) and/or have had a vaginal or cesarean birth. I am all of the above, being nearly 32 and having had both a CS and a VBAC. Do I really need to invest in the size 2, or will my size 1 do the trick?