Pregnancy following miscarriage advice please

Hello, I confirmed pregnant thuis morning with hpt. According to last cycle I should be 4 weeks today. I was a smoker, however when I tested positive I immediately tried to quit. I have smoked 1 a day since finding out and tomorrow will be my first day with 0 (I'm excited). In 2012 I miscarried a 5 weeks. I didn't know I was pregnant. And was not trying. The minute I accepted it I started to MissCarriage. The MC was also with a different partner.

I am calling a Gyno tomorrow, because I don't have one. I have heard I will need to request progesterone?? My friend said they gave it to her for the pregnancy following her MC. Any advice on what I should do? I didn't have the chance to do things the right way the first time around.

Symotoms: super hungry and tired. Boobs are very heavy. Motion sickness. Upset stomach especially is I don't eat when I'm hungry. Occasional headache.

Also I have gotten 3 bfp, all stronger than the previous one. (Looks like it's progressing well).

Suggestions? Advice? Experience?

(Left picture is this mornings)