diferential dignosis for: A 28-year-old woman presents with increased vaginal discharge and a foul odor.

diferential dignosis for: A 28-year-old woman presents with increased vaginal discharge and a foul odor. She has been in a sexual relationship with a male partner for 1 month. She has a 52 mg progestin IUD for contraception and is not using condoms with her partner. Her past medical history is benign, she has never had surgery and has never been pregnant. Her BMI is 25, and her vital signs are all normal. She has not had a menstrual period for 3 years related to the IUD. She does not use drugs, does not smoke, and has two to four alcoholic drinks per week, mostly on the weekends. She is complaining of increased vaginal discharge with a foul odor that is worse after sex. She has mild itching. This started 2 days ago. She reports no burning with urination and no pain with sexual intercourse. She has not self-treated with any over-the-counter (OTC) product