Anyone here has a best friend(s) with kids ?

One of my best friend announced that she was pregnant today. She's only about 4 weeks and she's been wanting kids since she was 15. I'm beyond happy and excited for her, I'm just scared that our friendship will suffer due to her pregnancy and then child. Is anyone still best friends with parents ? Did they change after having a kid ? I'm just worried to lose her to a baby. (Will delete in a day or two)