HELP!

I went for an ultrasound on Wednesday in hopes of having an IUI on Thursday and Friday. My follicle was only about 16 mm so the doctor said we had to wait until Monday and Tuesday and hope that the weekend didn’t throw things off since they are closed.

I’m suppose to trigger tomorrow morning at 11am, but am wondering if it’s worth it because I think I may have ovulated today but am not positive. I don’t know why I didn’t think to get an opk until now so I know for sure.

What would you do? Go thru with the IUI just in case or cancel and wait for next month?