So i've had unprotected sex with my partner for a month now. i keep getting this white discharge (kinda looks like cum) but it has a smell..

STD possible: You need to be concerned about an STD. See your primary physician for a urinalysis and culture, with tests for gonhorrea/chlamydia as well as an HIV test. If you can discuss this with your partner you should inquire about if he or she has symptoms. This should be done quickly.

See your doctor: White discharge can be many things like bacterial vaginosis, a yeast infection, or trichomonas vaginalis. I would first advise using protection (condom) all the time when having sex and birth control (Pill, IUD). You should also visit your doctor so the s/he can do a pelvic exam and determine if you need antibiotics to treat a potential STD.