your Ultrasond rsults are normal.
Some women have polycystic ovaries
In PCO the small cysts produce more male hormones that usual - this leads to acne
and to (if you`re not on the pill) prolonged menstrual cycley. You might have a period every 2 mths instead of every month.
If you`re not looking to get pregnant you can go on an antiandrogenic pill - that would help.
PCO is quite common.
All the ebst