Great question; if the baby arrives early, it resets your 45-day, post-delivery date clock based upon his/her birthday. Thus, if the baby arrived on 5 Apr instead of the expected 10 Apr, that would mean five less days you would receive per diem out of the total 90 allocated days, meaning only 85 days of per diem in this case. Because we establish our original agreements upon the standard 90 days, we would simply revise the agreement to reflect the new dates.