My daughter is pregnant ...

So Saturday I received a video text from my oldest daughter who is 25. It was a picture of a home pregnancy test showing "Pregnant". This should have been a happy thing but instead I had no idea how to respond. How can I be happy for her when she is in no postion to have another child? Her and her husband are lazy and unmotivated. They have drug issues and cannot manage money. They are planning to move to out of state to live with his parents in October. They say it is because her husband will be able to get a good job down there but I know it is to live off his parents (just as her husband did before they got married). Their three year old daughter has serious attitude issues and is basically "the Boss". She (my granddaughter) came to my house the other day and literally snubbed me and was so very rude. I watched how my daughter interacted with her daughter and I just wanted them to go home. So now she is pregnant and leaving to go live with his family which means I will barely see the new baby. So no I am not happy about it and I still have not responded. What I have to say cannot be said via a text message. I hope to have a talk with her in person and let her know that I love her and I wish her the best but I am unable to be happy under the circumstances.