Dear user,
Thanks for your question. To begin with you need to be using the IR file (CDIR61FL) instead of the BR file (CDBR61FL). For the IPTp indicator the unit of analysis is women so you need to be using the women's file. You can find more information about DHS datasets at the following videos.

Introduction to DHS datasets: https://www.youtube.com/watch?v=fzLNQkkvDeI
Introduction to DHS Data Structure: https://www.youtube.com/watch?v=BmiSDPebmgc

Once in the IR file you will then need to consider the following variables in your indicator calculation:
• During pregnancy took SP/fansidar (m49a_1)
• Took 2+ doses (ml1_1)
• Source of antimalarial (ml2_1)
• Had a delivery of a live baby within the last two years (Date of interview- Date of Birth) or (v008-b3_01)

Regards
Cameron