Definitely celebrate! You're a mom, you've worked hard to carry that baby, and you deserve to be excited about your new title. Go for it!
im due May 10th but i already have two boys. If this was my first pregnacy i would celebrate even if i was a day pregnant (lol) enjoy you day hun!!
At our antenatal class the midwife told us to celebrate it. Let your hubby spoil you, just bask in it!
You are a mommy to be..celebrate!! There are even greeting cards for pregnant mommies! Enjoy the day when it comes.
I'm due May 18th too! If you want to celebrate it, by all means celebrate it and don't worry about what anyone says! Your a mom, just as I... First time mom or not. Congrats(: