Already testing or wait a bit longer?

Hi,

Last month I started taking Clomid for the first time.
On day 12 I had to go to the gynecologist for the 1st time, but the follicle was only 1 cm. On day 17 I went back, and then there were 2 follicles that were 2 cm. Tomorrow will be day 17 already 3 weeks ago. Could it be that it took another week for me to ovulate or that there was no ovulation at all? For now, no period yet anyway... Thanks in advance for your answers!