Getting ready for first IUI

Hello. I’m getting ready for my first IUI on Thursday and had my US this morning. I’m still trying to understand all of the info I’m getting. I had 4 follicles (17,15, 14, and 14) and my lining was 11 mm. Are these numbers good? I’m 32 and have unexplained infertility (all labs and tests are normal). Thanks in advance I’m just overthinking a lot. Also I’m scheduled to work an hour after my IUI would that be okay. I’m a nurse and my IUI is in the building next door to where I work.