IUI SUCCESS STORIES

Anna
Hello ladies. I just had my follow up appointment with the fertility doctor after all my tests and 1 month cycle monitoring. 
I'm having an IUI this month and starting clomid next month if I don't get a bfp this cycle. 
Any IUI success stories after the first try?  And any bfps with the IUI without clomid? 
I've been reading some ppl have had bfp with twins. Did these women have twins from the clomid or just the IUI?
I'd also like to add that if anyone has questions about cycle monitoring or HSG testing I can answer now that I have some experience 
Thanks in advance