What Causes Yellow Vaginal Discharge With Strong Odour Post Abortion?

i had an abortion a month ago for the next week i felt fine then about a week week an a half after the procedure ive noticed alot of yellowish discharge with a strong odor its been a month and im on time for my period but i still have the discharge and odor and ive been vomiting alot the past week i almost felt like i was still pregnant after the surgery but then today i got my period right on time