Gut Feeling there's more than one

Anyone else just have a gut feeling there's more than one baby in there!? For some reason my gut is just saying twins. It's so strange. They don't run in my family. The only factors that actually increase my probability of having twins is that I've been pregnant before and I was nursing when I got pregnant. My morning sickness started at 3 weeks 4 days. And I feel like I have a little baby bump already at 5 weeks 5 days. But this is my second pregnancy, so I was expecting that. And I've had terrible round ligament pain that started at 4 weeks. I didn't get it until the very end of the second trimester with my first. I know symptoms don't necessarily correlate with twins, but I just have this gut feeling. Anyone else get those gut feelings?