So I have 5 vials left. I'm 48 and still pumping out follies. I've switched to a new and local RE who will treat me. Cost is moderately a concern.
So, do I do 1 vial this time since I haven't used this RE before and then 2 double vials the last 2 times? Or try 5 times using single vials? I know from a prior IVF that the donor's sperm lives 'til the next day and even fertilized an egg, although ultimately bfn. The costs are such that I probably will do 2 vials (1 IUI) vs. 2 IUIs on separate days. This RE doesn't do the ultrasound check like Check does, which would point to doing 2 IUIs, but it will be an extra $350 and so far perfect timing hasn't gotten me bfp anyway.
I would do 5 singles. As you say, even v accurate timing hasn't been the magic ingredient, so I think you have to spread your effort over as many months as you can. Is there a way you can do some closer monitoring even without the U/S? I'm now aiming for single IUIs since 11 IVFs have failed to work and my 46th birthday is any moment. I was hoping to avoid daily bloods from CD11 (which is how my current clinic tracks LH surge) so bought a CBEFM.....which has proved surprisingly accurate despite this being a wacky cycle for me. I'm hoping to get better at interpreting it and use that to refine timing (really broke paying the last "hail Mary" IVF off my credit card) so I can avoid the tests that add up each month (like bloods, U/S etc). I'm also going to buy Jill Blakeaway's book because it goes into minute detail about detecting cervical changes that signal O.
If you could narrow the timing to the right day, then, since the swimmers last 24 hours, you could do single IUIs. I think for those of us hoping for that one miracle egg, the more months you give it the better, vs putting all your resources into 2 or 3 tries...
Good luck with whatever you decide