Story highlights The child was involved in an ATV accident four months agoA pool party was held over the weekend(CNN) Four months after a catastrophic accident, Jamie Lynn Spears' daughter has reached a milestone. Maddie Aldridge turns nine Monday, and the family celebrated over the weekend. Spears posted pictures from the pool party on social media. "Today was the perfect day for a party," she wrote. "Thanks to everyone for coming out, and celebrating with our baby girlToday was the PERFECT day for a PARTY💜💛 Thanks to everyone for coming out, and celebrating with our baby girl💜💛 A post shared by Jamie Lynn Spears (@jamielynnspears) on Jun 17, 2017 at 2:57pm PDTAlso, I have to say a special thank you to @mallyb86 for introducing me to @signgypsiesnorthshore 👍🏻 Everyone was so accommodating, and these signs made everything look 10x better💜💛(this is not an AD, they were just truly amazing) A post shared by Jamie Lynn Spears (@jamielynnspears) on Jun 17, 2017 at 3:02pm PDTIn February, the child was steering an ATV to avoid a ditch when she drove into a pond on the family's property in Louisiana.

Source: CNN June 19, 2017 14:48 UTC