Opinions please

I’ve done 3 rounds of clomid which didn’t work, I ovulated on the 1st round but not the other 2. I’ve had a month off it as I’m waiting to get my results from a HSG test. Today is cycle day 14 and I thought I would take an ovulation test just to see and I’m pretty sure it’s positive! I didn’t take any clomid this month.... can it make you ovulate on your own??