Hello, my little girl was 3 months old on Saturday and we've only really started putting on her tummy in the last week or so, previously we have done it whenever we remembered which wasn't that often at all but she really hated it so it kind of petered out. The last few days I've been really aware that she keeps dropping her chin right down on her chest when I sit her up squashing her pretty face and although she can hold her head up straight she doesnt really do it and now I'm worried that its because of me not doing tummy time every day. I was wondering if maybe she just likes the way it feels to look down but am really confused 
Does anyone have any advice??
TIA