Switching jobs during pregnancy

Ok girls i need some advice...i currently work Wednesday 830-530 and Friday 1100-730...i stay home with my son the other days😉 a much better job that pays more and i wouldn't have to pay for any child care has opened up...but the shift is Saturday night 7pm to 7am and then Sunday 2pm to 6pm...i really want to take this job (both give me great insurance) i have prayed a lot and feel this is best for my family...however I'm 8weeks pregnant and just don't know if that will be ok during Pregnancy to make this switch. The job would be sitting most of the time. What do you guys think!?