This does not seem to be Haidh (period) as you describe. The following masa'alah can help you understand the conditions of Haidh (https://www.sistani.org/english/book/48/2171/)
446. The period of Hayz is not less than 3 days and not more than 10 days and if the period during which blood is discharged falls short of 3 days even by a small measure of time, that blood will not be considered as Hayz.
447. The blood of Hayz flows continuously for the first 3 days. Therefore, if blood is seen for 2 days and then interrupted for 1 day and then seen again for 1 day, it will not be Hayz.
So if the blood seen isn't Haidh then it's called istihadha. Rulings on Istihadha: https://www.sistani.org/english/book/48/2170/
With thanks and regards,
Ask An Alim Team.