Thinking first IUI failed...

We've been TTC for two years now & im not suppose to get AF until next Sunday but I started cramping so bad this morning . We had our first <a href="https://glowing.com/glow-fertility-program">IUI</a> this month and I'm already thinking it didn't work ... How do you ladies find positivity in situations like this ?  I'm just so lost and wanna cry my eyes out .