Precum on fingers?

What are my chances of getting pregnant off that? I accidentally touched my vagina later on. I got my period on time and it was normal after. For some reason I was STILL worried so I told myself if I got this next period I would be completely fine. I am supposed to get it today, I’m worried because I usually get it when I wake up but no sign. Been having my usual pms for a week, I had bad period cramps yesterday and I was certain it’d come today. I’m constipated as well. Stomach feels a little hard. I know I have the rest of today to get ir but i’m so worried.