You are very welcome to be here! I'm sorry you're feeling the cramping right now, that can be nerve-wracking even if you haven't experienced a prior loss. Some women experience implantation bleeding/cramping when the fertilized egg is implanting, which is generally 6-12 days after conception...would that fit what's happening with you, do you think?
Sending sticky dust your way...I hope this is your rainbow baby and that in about 8 or 9 months you'll be holding him/her in your arms!
I totally understand having the feelings that you're going to lose this pregnancy, too...I had the same feelings for about the first 10 weeks or so until awhile after my previous loss date. I kept expecting to miscarry any day...I even would get mad that it was taking so long because I didn't want to get attached to the baby and then lose it again. Finally I started to get more secure in the pregnancy and have less worry that I'd lose it. I never stopped worrying though, my worries just changed to other things.
Hope to have you here on our board for a long time!