will i ever have a family?

for some reason..the past few months...ive really truly been wanting a baby..a family of my own..not so much a husband or whatever..but a baby..a child of my own...and i guess if i want it then ill have to figure it out on my own..without a husband because that i cant deal with..but can i deal with being pregnant ? what happens if it doesnt work..what if..what if i cant deal with it..what if i cant manage it...what if im not able to deal with myself pregnant...what if my head isnt together enough to even consider bringing a baby into the world ?  oh i dont know..i really dont .. :(  but the whole thing is just an issue that is bothering me...realizing that im turning 28 this year..nad having so many ppl having babies..and knowing that i really do want a child..but i dont trust myself...