I had a scan yesterday only external. We saw a "gestational sack" but nothing else. The doctor said she didn't want to put me through an internal one but now I'm stressing. Should I be able to see more at 6 weeks? Has anyone not seen anything at 6 weeks with external but it's been OK? I've just searched and come up with loads of people who DID see something including heartbeat on an external scan at 6 weeks and now I'm panicking myself. It's stupid really because I had one at 7 weeks last time and they didn't see anything externally, so I know it can be fine, but I just need reassurance that it's common!