Lol I hope so. Totally not prepared for twins.
I had that, one was the placenta pumping! Sounds soooo similar
I think on the 12 weeks scan it would be hard not to see if there is 2 babies... but do ask your midwife about it. I never had a doppler so have no experience. But sounds strange...
When do u go for another scan? Do plan to ask your OB to look harder for another baby???
I have had the same exact thing happening. One baby in scan, two heartbeats with different rates. Sorry I'm off no help as I hope to know as well.