Help with follicle size!

Ashley • 28 // married to my best friend January 2015 // ttc baby #1 with unexplained infertility
I had a 28 mm follicle and a 35mm. <a href="https://glowing.com/glow-fertility-program">IUI</a> was done today, blood work said I had my LH surge. Should ovulate today. Is that follicle size of 35 ok? My RE seemed like it was fine and it to worry about it they said they like to see under 40 😳 I feel like that's huge! Anyone have a follicle this size and end up pregnant?