I had some early on too. I was told cramps by themselves are okay, and bleeding by itself is sometimes alright, it's the combination of the two that are bad. I think it's just your body adjusting to the baby.
Cramps are completely normal, i had the same thing around that time. The cramps come from your uterus stretching.
I also had awful cramps when i first found out i was pregnant. I think its normal:)
its normal iv had cramping since i was 3weeks pregnant n im 18weeks now, its very annoying! but doc told me its just the baby stretching my stomach
Cramping in early pregnancy can be normal. Make sure you stay hydrated enough if you are not it can make it worse. Good luck.