Is it obligatory to fast or to break the fast when very light pink discharge appears two days before menstruation in Ramadan?

The water that has come down is considered to have the ruling of yellowish and brownish discharge, both of which, if they occur during the menstrual period, are considered menstruation for which prayer and fasting are to be abandoned. If it comes down after fifteen days of purity, then it is considered menstruation, and she must make up the days she fasted. Al-Nawawi mentioned in Al-Majmu' that the correct view in their madhhab (definition) is that yellowish and brownish discharge during the time of possibility are considered menstruation. Al-Baji said in Al-Munataqa that Malik holds that yellowish and brownish discharge are menstrual blood, whether they occur before or after purity, and this is also what Abu Hanifa and Al-Shafi'i stated.