Question

Hi I need someone to ease my mind. I am 20 years old a first time pregnant person i am in the first trimester I'm only 7 weeks and I have been feeling some cramps and this morning I went to pee and after it felt like I had to push something out. Is that normal? Also is it normal not to really sleep and barely eat? I'm paranoid and a lot of people are causing me a great deal of stress and I don't wanna lose my little one.