spotting ? normal?

Mia
So I had a light pink mucus and idk about anyone else but typically before my period like a week or 5 days till I get this big glump of green booger lookin discharge extremely eleastic and long and a lot which tells me my period is on it's way. And usually the rest of the time I'm fairly dry well everything was normal about my cycle this month started pms right on time and same symptoms but today my glump of discharge had a tint of pink in it and I want to know is it spotting and if so is that normal this close to my period I don't really know much about spotting and could it be a sign of pregnancy because I did have sex ( pull out ) but it was pulled out and I saw it come out and my cycle went on normally and I had no suspections till this incident