I conceived by accident at 44, had ds at 45 & 2 months. I was lucky, had an easy pregnancy, no issues, no nausea, natural birth. I was reasonably fit, low BMI, good diet.
If your body can conceive and carry a baby, then no reason why not. However, I made a conscious effort to maintain fitness, took up running and martial arts, was determined ds wouldn't be stuck with an 'old mum'. I cycled, swam, skied with ds well into his teens.
I'm 62 now, ds is 17. We still do some stuff together, it's an 18 year project, minimum. Think long term, is that what you want? I'll be pleased to see the back of school fees this year.