@Munrowalker I think we have all been there, with one of my besties I was soooo happy as she has pcos and had been trying for about 18months my other bestie on the other hand cried every time she got pregnant as life just seems to have everything to her on a plate, home,marriage, babies x 3 & I was downright jealous
My reaction to someone at works pregnancy was to sit on the beach (I was on holiday when she messaged me) and cry but it is what got me started on this journey nearly 19months ago because I thought hell no I am not letting anything hold me back I need to go after what I want.
Don't be hard on yourself for how you are feeling it is completely normal especially with heightened hormones and emotions
I agree with LRD let your emotions out and then move onto yourself.everything is right this time,beautifully large follicle, lh surge. This could be your time and then your little one will have his/hers cousin just waiting for them a few months earlier.
Best of luck for you iui, let us know how you get on x