I was wondering if there is anyway of knowing whether you are carrying twins, before having an ultra sound.
I am 13 weeks almost and have had one ultrasound done when i was 7 weeks, however I havent had my second scan done, and i was wondering if theres any signs or symptoms which may indicate twins without having the scan?

Could the doctor have detected 2 heartbeats at my 7 week scan?
Would I start showing a lot quicker or have a much larger tummy than normal?
Any other signs that it may be twins??

Also what are the chances of having twins?