Ovulation tests

So I started clomid last month andthis is my second cycle on it. I took ovulationtests last month and was able to see the tests rise to peak. But this month im confused. I started testing when I had signs of ovulation, i tested morning and night. I could see them getting gradually darker. Last night it was positive but peak, then this morning the test was blank besides the control line. Is there a chance I did it wrong? Or could it be that i have ovulated already? Help and advice would be much appreciated, thank you