Original sentence: Besides her pregnancy, she also spent her hiatus finishing the final year of a three-year course in health and nutrition sciences at the Kanto Gakuin University in Yokohama (she had spent the first two years as a part-time student, which stretched the programme to some eighteen months)
Edited sentence: Besides happily enjoying her pregnancy, she also spent her hiatus finishing the final year of a three-year course in health and nutrition sciences at the Kanto Gakuin University in Yokohama (she had spent the first two years as a part-time student, which stretched the programme to some eighteen months)