Driving myself insane with worry

A🤍 • Survivor of 8 miscarriages & 2 ectopic pregnancies ❤️

So in January 2020 we had an ectopic pregnancy ( unruptured tube) we have now almost a year later conceived again. I’m around 4weeks and 3 days but I am absolutely sick with worry I can’t stop crying , every single pain I have I think I’m having another ectopic. I have similar back pain to how it was before and my pregnancy symptoms seem to come and go. Can anyone reassure me this is normal ? Or should I be worried ? I have a reassurance scan in 3 weeks to make sure it’s not ectopic but 3 weeks seems like a life time away. I can’t eat or sleep with the fear that I’m having another one 💔