It's normal to feel like that, but try not to worry so much (easier said than done, I know!). A lot of women drink before they realise they're pregnant.. I know I did with both my pregnancies. As long as you don't continue to drink, or at least not heavily, it's unlikely that it will affect your unborn baby.
Cramping during early pregnancy is normal & as long as you're not bleeding & the pain isn't unbearable, you don't need to worry. My nausea only kicked in at around 7 weeks, so if you're not feeling sick yet it doesn't mean there's anything to be concerned about. Some women don't get morning sickness at all, so you might even be one of the lucky ones.
Good luck, I hope the pregnancy goes well for you.
