I need all the information I can get.. Plz and thank you

Anna
I didn't know it's best to test fsh and lh on third day of cycle. Doctor sent me for bloodwork and got it done day 18 of cycle. My fsh is 11.1 and lh is 17.4. Could these levels be high around day 18? Should I get them re checked on day 2 or 3? If anyone has any suggestions from similar experience, much appreciated. Do these levels mean I will not be able to conceive? Devastated and worried today...