It can be yeast infection or hormonal changes that causes discharge to have different colour and unpleasant smell. You can request vaginal swab to test for infection, alternatively speak with your gynae/doctor to give prescribe medication (if any)
I had a white discharge initially turned yellow/greenish and turns out to be infection. It's normal doc will prescribe suppositories meds to clear out the infect within a week
Discharges are normal but if it’s unpleasant smell, it could be infection. U need to tell ur gynae for the swab.