Bump on Dogs belly - Please help

Hi internet!
I’ve noticed my dogs has a large lump and a smaller one next to it with sort of black dots surrounding the area.
I’m curious to know if it’s cancer or not.
I have no money until next week so am unable to take her to the vet, and kind find anything that looks similar online.
If someone could please help me out, I’d appreciate that so much!
Thank you in advance.