S.D.
Hi S.,
I had early risers (twins) and they went through a stage where they slept through the night, but would wake up around 3:30am and then 4:30am and so on. I stopped feeding them when they woke up and I think that helped a lot. I just gave in and realized we would be up early for a bit and looking back it was just a stage. Mine went to sleep around 6pm and 6:30pm and eventually slept until 6am. They still wake up early sometimes (my son mostly!). So, just keep doing what you are doing - don't put her down later as you said she obviously needs to go to sleep at 7pm or so - and try putting off feeding her if she is not begging for it until about the time you would like her to wake up. This will get her body used to not having anything food/milk until later in the morning and her little tummy won't wake her up. Mine also had a morning nap around 8:30am or 9am until they were about 14 months. They still took this nap when they slept until 6am. It might take a little while, but hang in there! two to three weeks maybe or a little over a month total.