He's still at the age where activity time may be as little as a nappy change. Eat/Sleep and need new nappies/diapers is all anyone does at this age.
It's very natural for them to only be awake for a few minutes if at all after a feed. If you want to do anything - just letting him 'be' when holding him/ looking around/ looking at your face. A gentle song, experiencing a new texture, a quiet chat.
I wouldn't worry too much about tummy time just yet - you could lie him on your lap on his tummy if you want. But obviously he won't have any real neck control.
Enjoy this time and try not to be so hard on yourself. Go slow and take time to learn about his cues. This is the time for learning his natural rhythms so you base your first EASY around him.
Late afternoon and early evening restlessness is very very common. Some suggest it's because of a build up of wind in the day/ feeling overstimulated or overtired/ feeling extra hungry and needing to cluster feed before bedtime. I would just keep him close and look at ways you can make the time more manageable - using a sling, planning meals a particular way, using family and friends.
As for feeding - would you like to be using 'the girls'? If you want any help with this visit us on the breastfeeding board. It's hard to maintain a supply with only pumping at this age as the way a baby feeds does particular things a pump can't reproduce e.g. a baby's tongue and mouth does a clever wave-like motion on the breast which stimulates the prolactin hormone and this is the hormone that governs milk supply in the long term. And the first few weeks are so crucial for getting a milk supply up and running. If you want to go back to the breast there are things you can do and ways to stimulate your supply. The vast majority of low supply issues can be remedied with changes in how feeding is managed and latching advice. Some mothers with low supply who need to give formula use something called an SNS which gives baby time at the breast at the same time:
http://www.lowmilksupply.org/abs.shtmlI'm just mentioning all this because without some support you may find your milk supply continues to dwindle and you end up just giving formula (the more formula you use, the less stimulation your breasts get - the more your supply reduces). If that's not a problem then no worries but we do have support on these boards if you'd like it.
