Trigger?

Feeling happy and down. I went in this morning for blood work and an ultrasound. My follicles looked good. One on the right is 16.4mm and ready. There was one below that one that was 9.4 and one on the left which was 9.2. Not big enough. So the nurse said we are going with the big one. So I immediately got scared that with just one egg there was not a great chance of getting preggos. So I am trying my hardest to not think like that and be happy that I even have one. DUH! I can be so silly sometimes. So I got my trigger shot and I am still awaiting the call from the nurse with my blood work results. I am praying we trigger tonight and then we go in on Wednesday for the IUI. Fingers crossed!!!