3,4dpo and boobs got lots of veins going on them

So I'm on cd 16, I'm 3,4 dpo and I usually have 26cycle days now I'm getting a line down my belly button linea alba or smt I think, and also veins going on my chest and boobs and nipples
I don't think I'm preggo but maybe I am? Also I get nausea from time to time and my boobs are bigger than usual so what do you think? Probably wayyyy to early to test or even suspect pregnancy 

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