I believe so Ummmm but that still doesn't mean that "light duties" would help, or that the employer must provide them. My experience of managing people on IVF was that if things got rough then they took sickness absence and followed the sickness absence procedure of so many days self cert then doctor's cert. It was certainly helpful to be told that they were planning to have IVF and in the work they were ding there were options to be flexible about what they did on not so good days, but we wouldn't have put them on light duties "in case"