I try not to let her sleep somuch in the day so that she won't wake up so often at night. My daughter pattern not very fix yet but usually like yours wakes up 2 plus 3 am for feed then 6 plus again. Sometimes we trynot to let her sleep so much in the day but she choose to then she may stay awake quite biting the middle of the night before she settles into her sleep.
Normally babies sleep in the day and active in the night. Try to recall, during your pregnancy, baby is more active in the night - right?
They sleeps in the day coz we walk that make them sleep. when we sit still or lie on the bed, baby starts to move inside our stomach.
Now is the time to train them not to sleep so much in the day, so in the night they can sleep longer hours. Especially in the evening, Dun play with them, once you turn on their play mode engine, you will hv a hard time to put them to bed.