follicle

my cycle with clomid is 32 days .on second cycle ,follicle on day 13 18 mm and on day 15 21*24 mm . and on day 16 the follicle disappeard. my question is do we need to trust the US or should we have intercourse for more few days? Thank you

YOU SHOULD TRUSET THE ULTRASOUND THE OVULATION IS IN FOLLICUKAR SIZE OF ABOUT 22-24 MM בהצלחה