Early spotting, more stressed than 2WW

I don’t know when I ovulated but had brown spotting between CD18-23. Got my BFP on CD 27. Lines are strong. I find myself worried that it was IB too early, worried my pregnancy is ectopic. No bleeding or spotting since. I’m having some uncomfortable cramping, which I imagine could just be my uterus expanding, but now I’m eager to get to my doctor’s appointment at 7 weeks to make sure it’s a viable pregnancy. I have all the symptoms and feel super pregnant. Hope it sticks. Anyone else feeling similar? I’m 4.5 weeks now.