I would like to confirm that the fertility supplement was not collected for never married/ single women in these periods. Is there any additional source I can access these data?
I'm looking for the fertility supplement of 1979 to 1988. Is there any reason why they are no longer available?
The fertility supplement was fielded in 1980-1988; however these samples are not currently available on IPUMS-CPS. The IPUMS-CPS team is working to get these samples released in 2016. In the meantime, you can access the fertility supplements on the NBER website.
I hope this helps!