Haven’t had a good sleep

Chernade

So I’m currently 13 weeks with mo/Di Twins and I am so tired and as soon as I lay down I can’t get to sleep at all my brain just won’t shut off, and if I do snooze off I wake up every night at 2-3am and stay awake until around 4:30 is this normal does anyone else not sleep even tho they are exhausted??