Help please????

lizzy • Mother of a beautiful babygirl baby #2 on the way
When you take a opk and you get a positive opk (which I did yesterday around 9pm). Do you normally get a positive during the time of ovulation from 12-36 hr or just that one day? And when is it a go time to eat the pineapple and when is it the perfect time to eat it ( morning, afternoon, or evening)???