What were your levels?
Here's what I've noticed - ever since my two failed cycles, I've noticed that pre IVF I would ovulate on my own on cd12 but after IVF I find myself ovulating on cd16-18... I wonder if ur baseline levels are low because you're a week or so off ovulation because it's s bit delayed?
My levels were low too and when they did my scan there was only one dumb follicle.......... Usually there's 4....
They triggered me bcos it didn't look like my LH was ever going to go up, but that's normal on Gonal f bcos it lowers your LH quite a lot.