I had the injection and I never even considered the 'non natural' aspect after a mainly natural birth - but then I didn't go natural for hippy reasons (I don't mean that horribly it's just the best way I can think of expressing it and I can see why anyone who did want the 'hippy' route would not want the injection)
After birth people are messing around with you (I had a midwife literally bouncing on my tummy to dislodge clots while another peered up my tunnel (after squeezing out 8lb bubs that's a pretty good description lol) with a million megawatt light, I had stitches for the episiotomy, there were loads of people just milling about - believe me the quicker you can get done and out of that delivery room the better! The injection didn't hurt, the delivery didn't hurt (but felt super weird) and we were out to the peace of a curtained bed in a ward ASAP
After birth people are messing around with you (I had a midwife literally bouncing on my tummy to dislodge clots while another peered up my tunnel (after squeezing out 8lb bubs that's a pretty good description lol) with a million megawatt light, I had stitches for the episiotomy, there were loads of people just milling about - believe me the quicker you can get done and out of that delivery room the better! The injection didn't hurt, the delivery didn't hurt (but felt super weird) and we were out to the peace of a curtained bed in a ward ASAP