Just curious

Hi mummies, i will be having my weekly checkup this coming tues which i will be in my week 38 and 4 days. I was thinking of asking to induced on that day and do you think doc will let me ? Because at week 36, my baby weight was 3.1kg and i believe that it has gone up even more. I am planning to go on normal birth so should i ask for induced on my 38 wks 4 days ? So far now i got no contractions yet. Just abit of cramp here and there. What do u think mummies?