Second sac??

So this is from my 7 week scan. I’m currently 9 weeks and go next week for my second scan. My husband and I have a nagging feeling that there is more than one baby hanging out in there since twins are very common on my side of the family. Clearly there is one very noticeable sac with clear picture of the baby, but we both see something just to the right that looks like it could be another sac?? Any thoughts? Tech swears it’s just one but I really can’t shake the feeling that I’m actually carrying two! What do you guys think??