I am assuming your question was meant to read, "How long can sperm stay in a womb without meeting an egg?" If I am correct about the nature of your question the answer is:
Sperm can live in the vagina or uterus for up to 5 days in hospitable conditions before meeting with the egg for fertilization. If a woman is near ovulation and her cervix is producing fertile fluid for the sperm to swim in the length of time they will live is on the longer side. If a woman is not near ovulation and the vagina is producing regular fluid, which is acidic, sperm generally die quickly. If in question, assume the longer time frame of 5 days.
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