Completely different from my first two pregnancies!

I'm 7 wks tomorrow and I have had spotting, cramps, nausea, vomiting, ridiculing fatigue, and sore breasts! This is all new for me! With my first two(sons) I felt fine in my first trimester, throughout my whole pregnancy really. A little back pain towards the end. But this time around I'm going through it all!! Has this happened to anyone else? I know every pregnancy can be different but this is hugely different from what I'm used to!