Can you ovulate twice?!

Hi, me and my husband are trying for baby number 1. I took an ovulation test 4 days ago and it came back peak, I took another one two days ago and as I expected it was negative, however after taking another one this morning, it is peak again?! Is this possible, to ovulate twice so close together? I'm guessing this is how twins happen?! Many thanks in advance for any comments :)