Green discharge during pregnancy is caused by inflammatory infections. When you have trichomoniasis, you will have increased leucorrhea, greenish discharge, and it will be accompanied by odor, vaginal itching and tingling. Normally, after pregnancy, the discharge should be white and sticky, without odor or discomfort. If the condition is confirmed to be trichomoniasis, it can be treated with intravaginal metronidazole suppositories to control the development of the condition, and you should also pay attention to hygiene and washing to keep the pubic area dry and clean to avoid serious development of the condition, which may affect the growth and development of the fetus.