For now it would be ok, since it's too early for implantation yet. Sudafed is the only congestion med on my safe sheet. If you do get a bfp later in the cycle, I would discontinue unless a dr oks it. For now though, it's fine.
I don't actually know about those in particular but there's a GREAT web site and phone number where you can ask all these sorts of questions. It's linked to Sick Children's Hosp. in Toronto.
The site is www.motherrisk.com
I don't know the number but it'll be on there.
I haven't actually had to ask them any questions myself so far but I've been told that if you call it's much better because they apparently take a long time to reply to emails.
Hope it helps