if you are pregnant, do you HAVE to go to doctors appointments?

so my grandma told me she didn't go to no doctors appointments at all because she was poor back in 1970... i don't have any insurance or nothing so im poor too. Do i have to go? im already 2 months.  I just want to be like the old times when i could take care of myself  and not the doctors. i mean of course i'm going to the hospital when the baby is born but not doctors appointments.