Is it okay to stay in bed for 4 or 5 days?

My wife is pregnant(9 wks.)and I was wondering is it alright that she has layed in bed for the past 4 or 5 days now? Not the ENTIRE time but I'd easily 21-22 hrs each day. She said she hasn't been sleeping just laying there. I think she needs to go see the damn DR or something. I can't spend all day and night sittin round the house I got work and such. Any ideas? Yes and I know shes pregnant I need to be this and be that,I already know that. After all we just had a baby 7 mo. ago and also have a 2 year old and my wife didn't have this sleeping issue then. And its startin to affect or relationship. I'm being as patient and understanding as possible but its getting hard. HELP ME