Test time?

Hello ladies!

I just finished my second IUI. This cycle I was on letrozole and took a trigger shot. How long does it typically last in your system?

My husband had a count of 242 million and I have a regular cycle. I had one mature follicle measuring 20mm.

Any thoughts on our chances? When would be a safe time to test? Wishing you all baby dust in the new year!

2019 is our year I know it.