Hey there Mrs G - congrats again to you!
I tried to have a natural birth but baby was lying in the wrong position - facing backwards. I was having contractions for over 8 hours and with no progress so I took an epidural at that stage. 5 hours after that still no progress and son went into distress, so I was given an immediate emergency C-section at that stage. I was relieved, to be honest. I was really tired by then and it was disheartening to keep hearing 'no, still no change' after hours of it. I too had SPD during the pregnancy. It's no joke that pain, and it is only recently - 3 years later - that mine has diminished and only after I've started Pilates.
The two things you mention, your weak/spasticity in legs and the bladder, may be less of an issue than you think. After I was given an epidural I had to lie in bed anyway, and they inserted an indwelling catheter, so that was that taken care of.
The physical recovery from a C-section was considerable for me - it's a lot more challenging than I thought and it took me quite a while to feel ok when moving. Because I rely on my core muscles a lot more for balance it hit me hard not to have them for a while.
I think you should do what you feel is best for you and your baby - that's the most important thing. Best of luck. x
RR-MS dx 1998 and Coeliac dx 2003
Copaxone, Cymbalta. EPO, Fish Oils, Vitamin D3 2000 IU daily, Cal/Mag/Zinc, Multivitamin/mineral, Co-Enzyme Q10, Probiotics, Milk Thistle.