So just about everyday my wife and I get the question: "has she started crawling yet?" I'm not sure but I always thought baby's started crawling at least at 8-9 months? While some crawl earlier, those are those babies who are itching to walk, and want to get that crawling business out of the way lol.
Our daughter has yet to master the art of crawling...and we are in NO rush at all for her to do so. We've given her tummy time on more than one occasion, putting her on her tummy on the bed, or even on a blanket in the living room, but nope...no crawling yet. She scootches backwards, or sometimes sideways a little...and puts up one leg, but makes no moves. She even turns herself over each and every time, and once she does that she looks up as us like yeah...I'm not moving, you can pick me up now (lol).
Once she starts crawling we know everything will change, she will be mobile and on the go; getting into any and everything, touching everything, pulling everything in her path, it'll be semi chaos as her curiosity grows...and we are not ready for that just yet. We are just enjoying her screeches, her laughing out bursts, her saying "dadadadada" to everything (well me the most lol), her turning over, etc. She has also gotten into the habit of touching our faces as if to feel who we are, it is the cutest thing ever. She'll reach her open palm out, you bring your face close to her palm, she'll touch your face, and then give you small little hits and just laugh away as if she just did the most funniest thing known to man.
I know everyone says this about their child, and I know you have read this many times, but our daughter really is amazing!