Stole my thunder

So my little sister announced their second child to just immediate family at Thanksgiving (due July 3, 2018). I am due with my first baby July 31, 2018 and was planning on announcing on New Years <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> because that is our extended families Christmas celebration. I have also had 2 miscarriages before this pregnancy but my husband and I chose not to share that with family. That also made us want to wait until 10 weeks to share in case we had another one. M y announcement reads "the best gifts don't come from under a tree Merry Christmas from our soon to be family of 3". Well my little sister announced on social media tonight "the best gifts done come from a store Merry Christmas from our soon to be family of 4"

Should I change my plan? Even though I had this picked out with our first pregnancy?