Sayang, first thing, please check with your doctor or go to the clinic ASAP, especially since you're at 38-39 weeks. GBS needs proper monitoring at this stage, and any changes in discharge should be checked out straightaway, okay? It's normal to have more discharge when you're pregnant, but with GBS and the smell you're noticing, better safe than sorry lah. A few of us mums in my circle had similar concerns near the end, and our doctors were really helpful in making sure everything was fine for delivery. Don't worry yourself, just get it checked so you can deliver peacefully! All the best, mama.