Tylenol and benadryl are the only two 'safe' medicines...although no medicine is best. I had a bad cold that was aweful for about 4 days and then lingered for like another 4...get lots of rest, fluids, and possibly use a humidifier (I did because I had congestion AND the runny nose/sneezes and it helped with the congestion...I didn't use any medication while I was sick). Hope you feel better!
As far as I've been told, paracetamol is the only thing you can take. Hope you feel better soon, being ill and pregnant is not nice