Milestones

Isabella • Mommy to Averie! 5/6/19 💗💗 & Karson 6/6/20 💙💙

My may 6th baby started rolling over around 3-4 months she is 6 months now and she just stopped rolling over about a month and a half ago and hasn’t since. She will just scream till I roll her over. She is not a fan of being on her stomach. She also shows no interest in crawling and doesn’t even try to bring her knees up. I’m afraid she will fall behind. Any advice is this normal?