mubblefubbles

You'll be fine to travel after you receive the card. If you do a search on here, you'll find many stories of people who have done so. The only thing is that you (and your spouse, if he/she is with you) will get sent to secondary inspection for a little bit just to verify your documents. Also, hello fellow Canadian! Hope the AoS process goes smoothly for you.

Like above, when you apply for AP witht he I-485 you don't even have to have a reason or date/time frame for travel. Just apply for it and they almost always give it to you. We left all information about travel dates and such blank, no issues.