Sayang, bleeding before your depo injection is quite common actually, a few of us mums experience irregular periods after depo, especially dalam bulan-bulan awal, so don't worry too much lah. That said, untuk peace of mind you, especially since the pap smear results aren't great and your doctor mentioned something concerning, I think best you follow up with your gynae properly instead of worrying sendiri, maybe request another check or ask specifically about apa yang she saw, sebab depo memang boleh cause cervical changes but your doctor should guide you through it properly lah. Anak anda baru 1 tahun 9 bulan pa, I understand the stress, tapi go see your gynae again for clarity on those brown spotting issues and the pap smear, don't put it off, okay?