finger with dryed spurm

I did some research for you....I hope this answers your question. In the future if you do research about things like this 

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After ejaculation, sperm exposed to room air on clothing, bed linens or toilet seats lose motility (the ability to swim) rapidly and drie out quickly usually within several minutes. Once the semen dries out, the sperm are usually dead. Inside the woman's vagina, most sperms die within less than 30 minutes, but inside the uterus, the cervix and fallopian tubes, sperm can survive up to 5-6 days. There is data suggesting that conception can occur up to 5-6 days days after an episode of intercourse. On average, though, most sperm doe not typically survive in the woman's fallopian tubes for more than 2-3 days. When sperm are processed and maintained under strict laboratory conditions in a nutrient medium, they can remain alive for up to seven days.Sperm samples collected into a sterile container may remain alive for many hours, but their fertilizing capability drops dramatically after 60 minutes.