My current job is very deadline intensive. I've returned to it once from maternity (4 days down from 5). Going on maternity leave again in 3 months and although i do want to return to work I don't want to return to my current job because i don't believe it is compatible with having two preschoolers. Does anyone know where i would stand if i tell my employer before i go that i want to come back to work but to a different role? Would i negate all my rights?