33weeks new job

Hey y'all I just got a new job I'm 33weeks pregnant and I didn't tell them I'm pregnant but it's just only 2 days out the week 1pm-10pm as a care giver my doctor said I can go out for disability at 36 weeks that's only 3 weeks away I applied for the job over 1month ago and was looking to start sooner do y'all think I should just kick back and take the disability ? Not only that my doctor said I might have my baby preterm because I had my son at 36 weeks but it's no guaranteed I just feel bad because I start next week and I'll be 34 weeks I hate to not be reliable what y'all think ?