Help?!?!

So I announced my pregnancy to my family and friends today first at my daughters bday party then on Facebook... I have had 99% positive reactions... Except 1 family member who is very mad at me... She won't talk to me right now and is playing dumb to anyone who asks her about it.... I don't understand why my aunt who is a grandma herself cannot be happy.... I'm so upset.... Anyone have any negative reactions from their family?