Pregnant from precum on condom ?

Hello, me and this girl were sexual active the other day, she was performing Oral on me and there was precum and then when I went to put on the condom I had placed ontop of my penis the wrong way I fliped it around and put it on right and rolled down. I'm just scared that the possible one drop of precum that might have gotten on the wrong side of the condom when I placed it on wrong could of possibly gotten her pregnant, I think Im overacting but I just need to know if it is possible that that could of happened.