Hi Lauri-
Welcome to the boards! You'll find lots of helpful people here so take a browse around
I'm happy to hear your nightsleep is going well. We do need to tackle these short naps though or soon your lo will be overtired and it may affect his night sleep.
I think before working on your pupd technique you need to look at your day and how long your DS is awake for. If he's extremely overtired it's going to make PUPD that much harder on him.
When we wakes in the AM he is content to just lay in bed and look around suck his thumb, maybe doze a bit or not until I come for him
Are you sure then that he is waking at 7am? 15 minutes can make a very big difference at this age for your lo getting overtired. Your first A time looks okay length-wise, but if he's waking earlier than 7 you may have him up too long. Babies normally like the first awake time interval to be the shortest of the day. You may want to try getting him settled to sleep 15 minutes earlier. Waking at 30 minutes or before usually indicates overtiredness. If this first nap doesn't go well, it can set the whole day off because then you're trying to have the second nap at a reasonable time which will have your lo awake far too long (9-noon for example)
If you are unsuccessful at getting him back to sleep, you may then want to put him down earlier than you normally would so that he's up no longer than 2 hours. I know that this means 11am, but if you go much later then he'll just end up with a short nap again. The object is to have him tired enough to have a good nap, but not so tired that he jolts awake at 30 minutes. This can take quite a bit of time and patience to figure out.
Also, rather than wait for your DS to wake up and cry, have you tried going into the room before he wakes and patting him or holding his limbs to prevent him jolting? these two links might have valuable info:
http://www.babywhisperer.com/forum/wake-to-sleep-for-naps-vt43311.htmlhttp://www.babywhisperer.com/forum/teaching-3-5mos-to-overcome-the-45min-naps-vt39769.htmlAs for PUPD, I will have to go back to the book and read up on this age. My DS was 4.5 months when I started and I don't want to give you the wrong information. If you go to the PUPD board, there are a couple of good announcement posts which might help you with your technique.
here is one:
http://www.babywhisperer.com/forum/p-u-p-d-for-3-month-old-info-from-consult-with-tracy-vt9278.htmlHTH for a start.