I have no idea what they'll be going through and the timescales of things.
Brother seems to expect his DW to be pregnant this month, but is he just being very optimistic? I imagined that SIL will need some sort of hormone treatment to stimulate her ovaries, eggs collected, sperm injected and embryo transferred back. Surely this will all take time? What kind of side effects form the drugs might she suffer from?
Also Brother is 38 and SIL is 40. Do you know what the sucess rates are for this type of treatment?
Thanks for any answers, I'm keen to support them but not to appear prying.