My DD will be 8 months in 3 days. She's still not crawling. I have to admit that I've never been great with tummy time because she's never liked it. She spends much more time in her exersaucer or jumper than she does on the floor. If she IS on the floor, she's sitting. When we put her on her tummy, she whimpers and sometimes cries, so we don't do it much. She isn't scooting or anything either. I'm getting really worried. Does anyone have advice or has had the same experience? Thank you.