Just curious is it like 1 out of 5 or something like that, I was seeing this girl for about a month which I found out was sleeping with two other people at the same time, I am very stupid for not using protection but its too late now, I got tested when I went to the hospital for strep throat they tested my blood for eveything. But sometimes it takes longer. I am 23 years old and this bitch was 31 who was comming out of a long marriage, so I felt it was ok not to use a condom STUPID ME! Well anyone got stats or statistics? What is the % chance?