Ectopic pregnancy

I'm 3 days late. This would be my third pregnancy, so I'm pretty familiar with the signs. I actually new I was pregnant a week or two ago because I've been having vivid dreams, super sense of smell, and heart burn. Has anyone ever experienced a ectopic pregnancy? My hips hurt on both sides, like a dull shooting pain. But it doesn't hurt bad just annoying. I've researched it but the symptoms are like pregnancy. And I'm just scaring myself.