I figured out pretty early that I was with twins, (I was supposedly 5w2d from my LMP when I got the ultrasound showing 2 sacs) Going back in tomorrow and I’ll be 7w3d. The sonographer didnt tell me one twin was one day older and I was also a couple days more pregnant then I thought. I tried to wrap my head around it because could I have gotten pregnant while on my period? Anyways I’m also showing, I started showing so early, before it was a little before I knew I was pregnant then after my ultrasound I look pregnant, I’m not massive but I have progressed a belly. So if one twin is bigger than the other does that mean they were conceived at different times? Does that mean they are fraternal? Anybody have any theories on guessing gender too?