Hi jamie*lynn....Congratulations!
I'm 13 weeks pregnant now and know exactly how you are feeling. The attitude I took was that everything happens for a reason, and you should just let nature take it's course. If mother nature or god or whoever you believe in...Fate...Wants you to have this baby, then you will. I took the attitude that there is no point in worrying about things, as you can't stop things from happening. But you can take as much care of yourself as possible.
I stopped lifting things and moving things that were heavey. As far as I understand, your bubs is just finding a cosy little corner and needs to settle....Up until the 13th week, your second trimester, there is a chance that bubs could become detached and a miscarrage could occur....So take it easy, keep relaxed, don't get stressed (as this will tense you up) and just go with the flow!
If I had any pains in my tummy, I would finish work and get home to put my feet up. You should start feeling really sleepy soon, and I think this is a way of making you slow down. I couldn't keep my eyes open past 9pm...Which was really strange as I don't go to sleep much before 12 usually.
Good luck, take it easy, and just try to enjoy your pregnancy without stressing.
Xx