Actually my ovulation day is tomorrow... but i got today continuous bleeding... where should i do?

It could be an early cycle this month. Just observe and see if the flow behaves as your usual period, i.e. heavier the next day and less on day 3, 4 and stop as usual. If this pattern keeps recurring for 2 more cycles, you should see a GYN doctor. However, if this bleeding is just spotting then bleeding recurs in a short time, you should see a GYN doctor for a pelvic exam.