not ovulation but it is possible for seamen to stay alive in a human vagina for up to 7 days. that conjunctioned with a 2-3 day travel time of actual ovulation.
as far as ten times, obviously the penis would begin to get sore, and the testicles would be over worked. 90% of ejaculate is bodily fluids anyway, but the sperm count would remain the same. just because an ejaculation may not be as large dosnt mean its not as potent, there is just less fluid to carry it farther into the uterus

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29 Sep 2011 8:30AM