40 weeks plus 1

hey ladies so im 40 weeks plus one and have had absolutly terrable sickness dioriah and head aches for over a month now. i. struggling to keep anything down.. my midwife will not induce me until 41 weeks plus 3 days. if i dont go in to labour myself but i just dont think i can make it that far. this is baby number 2 my first i was induced at 42 weeks bang on.. is there a reason as to why she wont induce me??