Weird discharge but it was only once..? Help

Hi ladies,

I’m anxious and I need some help. Last week my boyfriend gave me oral and afterwards I went to pee and when I wiped I had a small blob of greenery Yellowish discharge it was clear and about the size of my finger tip and I only had it once and haven’t had it again since . I haven’t had penetrative sex since September so 9 months ago which at the time was with a condom. Me and my boyfriend only engage in oral sex really. My discharge ever since has been completely normal and either white/clear. I haven’t had any other symptoms at all.

Should I worry?

Please help. Thank you