The issue with using the all women factors is often that you need to inflate the denominator of your indicator to inflate the number of women from the ever married women to all women, but you don't want to inflate the numerator as the assumption is that the never married women have had no children. Below is some code in stata that demonstrates this:
* Set up svy paramaters
gen wt=v005/1000000
svyset v021 [pw=wt], strata(v023)
* All women factor
gen aw = awfactt/100
* Check the denominator
tab v013 [iw=aw*wt]
* Children ever born
gen ceb = v201
* Use the ratio of children ever born and all women
svy: ratio ceb/aw, over(v013)
svy: ratio ceb/aw