Has anyone ever had mild one-sided pelvic cramping and gone on to have a healthy pregnancy?

I'm 5w2d and woke up last night to a dull cramping in my left pelvic region. I got up to use the bathroom (and there was no bleeding), and it mostly went away but there was still a slight twinge for a while before it disappeared completely. I'm definitely concerned it could be an early sign my pregnancy is ectopic, especially as I recall feeling the same twinge on my left side a few days ago (again, only temporarily).

I sent a message to my doctor's office this early morning before they opened, asking if it's worth coming in for. But while I wait for a response, I'm eager to know if anyone has ever experienced this and continued to have a totally healthy pregnancy?