Billie Lourd has spoken out for the first time since the deaths of her mother, Carrie Fisher and grandmother, Debbie Reynolds.

Last week, the world mourned the loss of Star Wars actress Carrie Fisher after she suffered a heart attack while on a flight from London to Los Angeles. She had been in stable condition before being pronounced dead on Dec. 27.

Just one day later while planning her daughter’s funeral, actress Debbie Reynolds passed away after suffering a stroke. Reynolds was with her son, Todd, who said before she died, she told him she “wanted to be with Carrie.”

Since then, social media has been aflood with condolences and support for Lourd, who is Fisher’s only child.

The Scream Queens actress posted a family snapshot on Instagram. In the photo, she is seen as a young girl with the women she called “Abadaba” and “Momby.”

Lourd captioned the photo, “Receiving all of your prayers and kind words over the past week has given me strength during a time I thought strength could not exist. There are no words to express how much I will miss my Abadaba and my one and only Momby.”

After losing his sister and mother, Fisher told 20/20 they were planning a joint funeral and they would be buried at Forest Lawn Memorial Park located in Los Angeles.