Just had my first IUI, what do you think?

Sorry if this is long but you need the details!

I have severe endo but I ovulate normally and my tubes are clear so we decided to do IUI with 100mg of clomid. THis is my first cycle which started on my birthday by the way :P

Yesterday was day 14 and went in for u/s: had one dominant follicle at 18mm and three others of 12mm. They said to wait two more days before giving myself trigger shot and then iui on Tuesday. But the also said to take opks every 12 hours starting last night...just in case my body decided to ovulate sooner. Well I got a positive opk last night and so they told me to do the iui this morning!

Do you think that this was too soon? How long after +opk are iuis normally done?

My hubby's count was great though...washed sperm level was 47 million motile!

We of course will have sex again for the next two days just in case, but I guess I'm worried about how many of the follicles are going to be released and also how long washed sperm will stay alive while waiting for the egg to release.

thanks everyone :)