I think your day time sleeps are brilliant and they are the exact reason why if you feel like you want to go out you should! One day isn't going to hurt every now and then.. The way I do it is if my LO has a good nap in the morning, the afternoon can be about me a bit
If he doesn't sleep at all in the pram or car then it's early to bed and all naps at home the next day!
Don't worry you are doing great and don't get stuck at home if you want to get out, it's good for you both
Having a dark shade cloth to put over the pram, so they can see but it's not as bright can help them to nap (also reduces people sticky beaking too!!)...
Enjoy your lovely bundle!!
Lizzie