Girls, I'm 6 and 3 weeks pregnant My breast is slightly sore, nausea, …

Girls, I'm 6 and 3 weeks pregnant My breast is slightly sore, nausea, vomiting, and problems with bowel movements. It's constipation or diarrhea. Today I had constipation, so I did a micro-clism microllax. It helped, but I feel heaviness in my stomach, is that normal? I had an ultrasound on January 27th, they said everything was normal, there's some tone but it's not dangerous, there's no threat, and the cervix is completely closed.