Those who have experience with ectopic

Wondering what your first signs were. Was there always bleeding? I have had a cramp like feeling..shooting dull twinge in my left lower abdomen. I know what round ligament feels like, this is a bit different than that snap feeling. Just at random throughout the last day or so. No other symptoms. Besides my morning sickness. I’m around 5.5 weeks. First appt isn’t for a week. Curious if you’ve had it happen to you.. did the pain come and go? Was it severe where you weren’t questioning it? Anything helps. Thank you.