Welcome to BW, Heather and congratulations on your DS
Sorry just a quick response for now but I suspect he may already be overtired (OT) by the time you're trying for a nap. At 2mo even 1.5h would usually be too long, and that's from the time they woke from the previous sleep until the time they drift off, so the wind down would need to start even earlier. It's great to be watching their cues, so do keep doing that, but be aware that some LOs (like my DS) don't give the obvious cues such as yawning until they're already OT! So although we need to be watching our babies rather than letting the clock dictate, many of us have found it useful to aim for particular A times, log what happens and adjust accordingly. Have a read of this, really useful
What are A times and how do they fit into the EASY plan?As you say, he's probably too young to settle himself to sleep without your help, but there are things you can do now to help teach him those skills, which will make sleep training easier in the long run. Here's a nice link to info on Tracey's shh pat method:
Shush-pat - How toYou don't necessarily have to use this method for every sleep. Especially in these early weeks, enjoy those cuddles and make sure you get out too. Even if you use shh pat for just one or two naps a day, plus bedtime, it will pay off. Hope those links help you get started, do let us know how it goes!