I have an appointment Tuesday and I'll ask about this when I go just need to know if I need to go in…

I have an appointment Tuesday and I'll ask about this when I go just need to know if I need to go in now or if I'm safe to wait...about a week ago I called the office and explained the pain I've been having to the nurse, sharp pain in my lower back and sides..she said it sounded like a bladder infection and called in antibiotics for it,I just took the last pill yesterday afternoon. The pain got better,somewhat, a few days ago I kept getting this sharp shooting pain up my lower back that would move from one side to the next and come and go.. this morning I woke up to quite a bit of yellowish/brown discharge with no bad smell at all. Baby is still moving around so I'm not too concerned but it is worrisome :c