Failed IUIs

Me and my husband have been trying for two years he is 29 and I am 25. We have started doing our IUIs in June and just finished our second one, ending in AF showing up this morning. I just feel discouraged our doctor is giving us 4 try's with the IUIs before moving us to ivf. After taking a test yesterday and having it be negative I found this pic while searching for some kind of comfort. I wish there were words that could make my heart and mind at ease. Wishing baby dust to all!