Could Ovulation Take Place Twice In A Month?

I am 36 years old, have had five pregnancies and have my tubes tied. I am very sure that I ovulate twice - once about 10 days after the last of my period, then again like normal before the beginning of my period. Is this possible? There is discharge, I get restless at night due to a rise in body temperature and I feel extra tired. After about 3 days, the discharge dries up.