Pregnancy Announcements

Based of LMP, I'm due somewhere between Nov. 9-11ish. We'll have our first scan on March 26th and that's when we'll announce to our family. But has anyone announced to family through text message? I want to do it in a cute way, but we have a 17 month old and I feel like my parents are just gonna be like "great. Another one." I'm grown and married but that's just their attitudes. Any ideas of how to announce?