getting very scared

i’ve posted before that i recently found out about being pregnant with twins, they’re measuring 11weeks 2days now... i’ve been reading and researching a lot online since i’ve found out and i’m so scared that my babies will be born super early. my first baby went to term, the whole 40 weeks. i know twins are usually born around 36ish weeks but i’m terrfied of them being born before then. i’m terrfied of something being wrong with either of them. i’m scared that there’s not enough room in the womb for them. they are di/di twins which i have read have the lowest chance of complications but i’m still so scared. i don’t know what to do but just cry. i’m so emotional. i’m trying not to stress too much. but i can’t help it. i just want my babies to be okay :(