So before I concieved I exercised 3 times a week, lifted weights & went running. So I considered myself moderately fit. Since getting pregnant I haven't done any exercise mostly because I was really sick up to about week 22. Now am feeling better should I start walking again, exercising more? I was really fit with my first & had a great quick labour, am scared now am so unfit I will have a terrible birth this time.... opinions please! is it to late to start again now am at week 26?