Iui and fertility specialist apt.

So I am going this Monday cd12 to a fertility specialist.. we are going to discuss and iui along with anything else they suggest. The thing is I am already on 5mg femara and wanted to know if they could possibly do a trigger that day and iui when they can. Do you think on that short notice they would do an iui how soon did any gal that had an iui get hers? Did they make you wait to monitor the cycle?