Follicle size 28mm at 11cd

Violeta
I'm on my 3rd <a href="https://glowing.com/glow-fertility-program">IUI</a> cycle. And I had a follow up appt to check my follicles. Well the nurse told me I only had one mature follicle size 28mm.  She didn't tell me much else. 
Should I be considered? I'm waiting for the call to see if I will trigger Ovidrel tonight. Advice please?