Definately speak to your doctor hun, its not easy but they can help.
I found out at 4 weeks I was pregnant, and it took me till 7 weeks to get the courage up to speak to someone about it as Id told myself I couldnt do it.
I have a smoking cessation lady that came out the day after the dr's visit and ive not touched a cigarette since her first visit. She gave some brilliant advice, offered me all the NRT that I could want (ended up using none as I hated it all!) and she made it a lot easier.
You can do it, its hard going but you can defo do it. You have this amazing reason to do so now.