Need some advice

Dominique • Myles John 3/8/16. Micah Robert 6/29/17
I have a friend who is pregnant, according to her period she thought she was 8 weeks. She was having some red bleeding so they went to the doctor. The doctor decided to do an ultrasound to see what was going on. Turns out she was only 6 weeks. They saw the sac and the embryo and said it was good and in the right spot. Her bleeding has gotten a little worse today  and having cramps off and on. Anyone had this issue? I've been trying to read stuff and it could be normal or could be early miscarriage?