My first pregnancy

Hi everyone. This is my first pregnancy and currently i am 10w pregnant. I’m scared and dont know what to expect. My husband is fantastic and very supportive but i just can’t shake off this feeling. I’m scared that I won’t be able to give birth and handle the pain. Is there any mommies who felt like this too? I’m having nightmares and always woke up around 2am and can’t sleep afterwards. Making me super tired and fatigued 😭