Contractions???

I had a very small amount of brown/red blood tinged mucus when I wiped around 2 pm today but never had anything else. I started cramping in my back around 9 pm today and I just started having extreme tightness in my abdomen now with these cramps. They’re not close together. I just had 2 about 10 mins apart but I’m hoping they will go away. Does this sound like contractions? I’m 33+4