When I had my terrible accident during my pregnancy, I worried that I'd always think of Elena as a lightning-baby, as somehow scarred like the scars on my arm..... Her arrival changed that, I think - she is who she is, and that accident is just one (very subtle) facet of her, somehow (though she doesn't even really know about it yet). Niblet will be born, and he'll be himself and who he essentially is, and you will know that he's a wonderful baby. Yes, things could have turned out differently in the alternate timeline. You will always have that grief. But Niblet's wonderfulness will bring you copious amounts of joy.