6 week cramping

Aiko • mommy of a 1 year old and pregnant with our second! Wellness Advocate for dōTERRA Essential Oils
I've had intermittent cramps on and off from last night. I'm so paranoid about MC as my next OB appt isn't until April 4. 
I had cramping at week 4 or so and I'm assuming it was due to implantation. But anyone else experiencing this at week 6?!
This is the only symptom I'm experiencing this week besides tender boobs. 😫🤔