So when I found out I was having twins, I was about 9 wks. The picture to the left is of the two sacks. The doctor said that because the sacks are divided by a thick line in the middle it made it more likely that they will be fraternal twins.
Scientist refer to fraternal twins as dizygotic, involving the union of two eggs with two sperm to crate two embryos. As shown in picture below. “Twins, Agnew 7”
So my hope is that I will have both a boy and girl or 2 boys. I have a daughter who is almost 9. yrs. We will see what happens.