Light green discharge-concerned

What is this? I haven’t had sexual intercourse for 4 months.

I had unprotected sex a few times, in february and in july. In february i took the morning after pill and saw green discharge the first time. (It was a but darker as i remember) but then didn’t saw it again).

i only had one partner all my life.

I don’t have any symptoms, it’s odorless, i usually have white discharge too but this light green discharge concerns me.. Sometimes i wonder if it is the lighting or my paranoia.. but today i saw another “”sample”” (that was Greener than this) dry on a paper towel and Even dried it looked greenish.. Even if i don’t always have it it’s weird seeing something like that.. and as i Said, i have no vaginal bumps, no itchiness, no swelling and no unpleasant smell. So What do u think it is?