Crazy question but one I've always been curious about! I have 2 girls and with each of them, at the first ultrasound I always joke and say "just one in there right??" And we all have a giggle. But this time I went in and I was earlier than I expected (just shy of 5 weeks) and when I made my usual the joke the tech just said "it's too early to tell!" So now I'm like 😳😳😳 haha so how many weeks were you before you found out you were for sure having twins?! And I wonder if identical twins take longer than fraternal to detect because they are in the same space??