Maternity Leave opinions please!

Adria • 🦋 27. Married. Mother of 3 boys✨ 10.22.15 - 05.01.17 - 01.13.20
Hi fellow mamas! I'm just wondering when you ladies plan on taking your leave, as in how far along will you be? My boss is asking for "day-off" requests for September and I'm thinking it'll probably be my best bet to let her know now when I plan on leaving. I am due Nov 2nd, do you think having my last day be Oct 1st sounds reasonable? I'll be 35w3d I believe. 
Thanks in advance!