Terrified and tormented that I have melanoma

[Worryingsobad]

I am 33, from Australia and 22w pregnant.
The other night I noticed a brown mole on my back (in a highly sun exposed area) had turned bright red, was throbbing and had a pus head!
I googled and found nodular melanomas - the worst and most deadly kind, that looked just like it!
I went to the Dr and he cut it out but results don't come back until Wednesday and I am in constant torment that I am dying from painful deadly cancer.
I cannot stop thinking about how bad it is and everything I have read on Google is absolutely terrible!
I am terrified of getting my results back and what they might find.
I have had heaps and heaps of sun exposure in my life, I feel doomed and distressed and I don't know what to do!
A photo attached, it looks so bad!
HELP!