Facebook app

So I just added the Baby Gaga facebook app today. I'm 13 weeks 5 days and it just sent out the first facebook announcement today saying I'm 13 weeks. I'm wondering, when I'm 14 weeks, will it send another update exactly at 14 weeks (in 2 days) or will it wait until 14 weeks, 5 days?

It updates weekly. So you'll get another posted in a few days  

I just found out I am having a girl and I have seen somr of my friends have been able to chage the little baby pic on their facebook page to say baby name and make it pink and stuff i cannot find where i edit this.