Cramping

I’m around 6-8 weeks and I was experiencing cramping, moderately painful cramps with no blood. My midwife assured me this was okay. I haven’t had any cramps for about 3 days. I was told cramping was a sign of your uterus expanding and getting ready for the baby. I’m a worry wart so now I’m worried because I haven’t felt any! This is my first pregnancy and I’m not exactly sure what to expect 😩