All perfect praise be to Allaah, the Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.
You should not make up for these days because vaginal secretions do not invalidate the fast as unanimously stated by scholars, even if they are accompanied by a feeling of pleasure.
Hence, it is apparent that these secretions are natural, and they only require performing ablution after washing it and any stained body parts or clothes, if we consider that these secretions are impure. Your doubts about whether these secretions include vaginal fluid or not do not affect the validity of your fasting, unless they are confirmed.
Allaah Knows best.