My daughters will be 5 months old on the 12th she is getting better with sitting on her bum with assistance and without for small amounts of time. We do tummy time everyday but I also put her in her bouncer and swing a good bit because she doesn’t always enjoy tummy time and I don’t want her flat on her back and the back of her head all the time, I’d rather put her in one of these so she just not putting pressure on the back of her head because I have notice on the one part it’s becoming flat, so has anyone used these for babies who can not fully sit on their own? Would it be okay to use as of right now? She has pretty good head control so I’m not concerned with her head flopping back and forth I’m just not sure that it’s okay to put her in one yet since she can’t fully sit on her own! So opinions ideas on other products that’d be okay to put her in at this stage?