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So having sex 3 or 4 days before you ovulate and on the day you ovulate will give you the best chances of getting pregnant. Michelle Stephens Hello, The last day of my period wasMay 16/17, I had unprotected sex on Jun 3rd, according the ovulation calendar I missed the window to get pregnant because my period I due on Jun13th.
Because sperm lasts several days in the human body, and a womanâs egg only last a maximum of 24 hours, the best time to have sex to get pregnant is a few days before ovulation should occur. Couples should begin having sex five days before a woman will ovulate and one day after ovulation.ecause sperm lasts several days in the human body, and a womanâs egg only last a maximum of 24 hours, the best time to have sex to get pregnant is a few days before ovulation should occur. Couples should begin having sex five days before a woman will ovulate and one day after ovulation.