Yes to experiencing the mild cramp pain early on. Mine eased up fairly quickly from memory.

I had my first scan at around 8 weeks - heart beat is detectable. I was sent for mine (didn't ask for it) and the dr said he wanted to check whether it was a single or twins and that it wasn't ectopic so if your care provider isn't keen to send you for an early scan, you could mention those possibilities as reasons you want one done (and also to ease your worries!).

Wishing you a H&H pg!