White discharge on its own is usually normal, often linked to your cycle. But if it changes color, smells different, or comes with itching or burning, it points to an infection. Since you're married and this has lasted a while, a vaginal infection is worth ruling out. These are common and very treatable.
Next Steps
Keeping the area clean and dry, wearing cotton underwear, and avoiding scented soaps helps with ordinary discharge. If you notice itching, odor, or discomfort while urinating, a gynaecologist can examine you and prescribe the right treatment.
Health Tips
Please see a gynaecologist in person for an examination, since the exact cause can't be confirmed without one.