idk when to worry, or how to not worry.

Ma
I had a m/c end of April and I just found out Sunday that I'm already pregnant again!! I was literally so excited, especially since after the m/c we had just kinda stopped thinking so much about the whole process. 
So I had my bloodwork done yesterday (haven't heard from them yet), but I woke up this morning with light annoying cramps that come and go. Mostly in the vaginal area, the only way I know to describe the feeling, is that it feels "heavy" if that makes sense to anyone... and some off and on back pain. 
No spotting. And I'm trying HARD not to panic and become discouraged but I'm not doing a very good job. I don't want to experience another loss, especially this soon after the last. 😭