I think Erin said it perfectly...
I won't be celebrating for two reasons - one is that in Israel they both celebrate sometime in February (I never remember when) and they've switched it to "family day" and the second is that even if there were a Mother's Day in Israel, my kids would definitely forget. They sort-of-remembered-after-being-reminded that my birthday was yesterday... (and even that just means that they said the words "happy birthday").
In blogosphere news, my mom sent me over to plan-b. For those of you who haven't followed their story (I did, but at some point I stopped reading), they had a really unique surrogacy experience, with a known surrogate who co-blogged with the intended parents. Go check it out :-)
I haven't had a chance to mention Doc Grumbles - she was at the top of my mental list of "most likely to succeed soon" infertility bloggers and is newly pregnant :-)