Is IVF Or UIU Are The Only Choice For Me ?

Is IVF or UIU are the only choice for me ? I have been trying to get pregnant last 18 months but it's not happening. I start taking profesional approach to analyse or find the reason. I have acne problem as well which I believe it caused by unbalanced hormon. And it may be affecting my pregnancy . I visited GP asking for an answer. The doctor provided me a letter to proceed further analysis at city hospital. My husband took semen test. And the result was an average one. I did further checks by inserting a liquid inside my vigina to see if the tube is open or closed. And the result seems OK.(Tube is open) During the test, doctor pointed that my egg was quite big. And asked me, when last period started? I answered 7 days ago. Doctor said, are you sure? ..... Test finished and the doctor offered two options. 1 IVF, 2 UIU. But not further analysis on my body/hormons before going for medical treatment . It is right? Aren't there any other option at NHS ? Can't the doctor check my hormon pricisely ?