Clomid, Midcycle U/S, Small Follicle...HELP!

Samantha • Mom of a beautiful 2 year old, Emmy. Trying to conceive miracle #2, TTC for a year so far with PCOS.
Long story short... midcycle u/s (day 14) I had 2 small follicles, the bigger measured at 1.7cm ... Doctor said it probably wouldnt happen this month due to the size. Then I got a positive OPK on day 18. Cpuld the follicle have grown enough from day 14- day 18 to make it possible this month? Thanks, ladies ❤