Many women adopt different contraceptive methods to prevent pregnancy. Some of which may cause bleeding/spotting at irregular intervals. Seeing as this form of bleeding is not a period, because it works by preventing the release of the egg from the ovary, basically they stop ovulation, would a woman be considered unclean? The irregularity could be as little as seeing a spot of blood when using the toilet once a week.
Would the policy on menstruation apply here?
Please bear in mind that the choice of contraception is often influenced by a number of factors such as; age, weight, nursing a child, family planning, allergies etc
When there is a blood spot you remain two days away.
Say it comes today, it didn’t come tomorrow, the third day you do sanctification. If it comes today and comes tomorrow you wait two days after. You wait two days because it is just spotting.