IUI/trigger question

Jennilee • TTC # 3 since June 2014
Hi ladies! I'm on my first clomid/injectable/<a href="https://glowing.com/glow-fertility-program">iui</a> cycle. Took clomid cd 3-7, gonal f injections cd 8-12 of 75 iu, ultrasound on cd 12 showed three 18 mm follicles on my right ovary and one 18 mm follicle on my left ovary. (I've had a previous tubal prehanncy so I have no tube on my right side) I triggered last night around 8:30pm and was supposed to go in for my <a href="https://glowing.com/glow-fertility-program">iui</a> tomorrow morning at 8:45 but we are supposed to be getting a bunch of snow so the office called me today and asked if I could come in this afternoon to do my <a href="https://glowing.com/glow-fertility-program">iui</a> which is only 19 hours post trigger. I'm kind of upset because everything I've read online says it's best to have the <a href="https://glowing.com/glow-fertility-program">iui</a> done 36 hours post trigger. They said they will call me in the morning if they can get there and I could get a second <a href="https://glowing.com/glow-fertility-program">iui</a> if I wanted. Has anyone ever had success having an <a href="https://glowing.com/glow-fertility-program">iui</a> 18-20 hours post trigger? I hope I'm not wasting my money this cycle. I want the best possible chance here. Thanks for listening.. Any advice or comments is appreciated!