(surgical abortion -D&C) there may be heavy use of antiseptics and antibiotics on the vaginal area.
This may alter the local envirionment for organisms and along with hormonal
imbalances during pregnancy
also causes increase in bacterial or yeast infections
These infections usually dont need treatment. But if the foul smelling is bothersome you need to have some local antibiotic
You have mentioned you are having burnning sensation while urinating an pain in backs. This is also normal after D&C. If the problem persists you may need to have antibiotics and pain killers
It is advisable to consult you GYnc if your symptoms are not releived.