Mothers intuition...

So this is my 4th pregnancy but 3rd baby.. I have 2 beautiful girls and had "feelings" with both of them that they were girls.. I was right... this time around I can't stop thinking it's twins.. I mean I'm XL for only being a little over 7 weeks and have had the worst nausea and exhaustion with this one and many dreams of havibg twins and had none of that with either of my girls. I go In for my first ultrasound this coming Friday and I am so excited yet nervous... what I'm asking has anyone had a feeling of multiples and were right? Or is it just me being crazy?!!