I find myself in a similar situation - I am applying for a new job internally in large multinational for which the timeline is uncertain - just found out I am 5 weeks pregnant - now they want to interview me. Personally I do not feel like telling anyone yet. However what if they say, the role will be free in April. I'll be there for about 3 months and then I'll do a disappearing act. I work in sales so this could seriously mess things up for my new manager. Thoughts?