After vaginal ejaculation, sperm can survive in the woman's body for a maximum of 4-5 days. The conditions in the female are similar to those in the male and therefore the sperm can survive.
Read the full article on: Which Methods Are Used to Assess Sperm Vitality? ( 35).

Andrea Rodrigo
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.