Bad depression/mood swings this early?

Br
Hi everyone so I found I was pregnant about a week ago and before this pregnancy I had a miscarriage and I'm scared that this one might turn into one too. I'm a little over 5 weeks. The past few days I've been a horrible monster to my husband and I just can't control it and I feel stressed and on edge all the time and when I'm not I'm crying. This isn't how I normally am and I can't seem to fix it. I'm starting to want to smoke again just to try and calm myself down even though I know its terrible for the baby. Is it normal to have this bad of depression or whatever this is this early in pregnancy and how do I fix it. (Therapy is out because I work 8-5 every mon-fri and no where I can go on the weekends)