He prescribed Decapeptyl (like Lupron as far as I can tell) to take for 10 days before I go for a baseline and start stims. We didn't set a start date, because DH and I are going on vacation.
I want to start the Decapeptyl immediately upon returning from our cruise in Europe (

As far as I understand, most people start Lupron on day 21 of their cycle. The important thing is to start after ovulation.
I have PCOS and nearly never ovulate on my own (it's happened once or twice, but I'm not expecting it to happen now). If I don't have a regular cycle, when should I start the Decapeptyl? I just go for a baseline when I want to start and if all is quiet, I start the Decapeptyl? My RE also gave me a rx for Provera to get a period. Should I take that now, so I get a period now and CD21 will be when we get back from our trip? Or is the Provera to give me a period after I've started the Decapeptyl?
Thanks for any help!