Bidan/ Confinement Nanny

Hi, first time mum and edd is 10th Oct. I got no one to advice or help me out so i am seeking information here. Both parent is no longer around so me and husband is clueless. Is it a need for a bidan and/or confinement nanny? What's the need for them and what are their job scopes? How much do they charge? How do I find them? Can i just go on after giving birth without them? Please help, TIA!