Pregnancy bloat or bump?

I am FTM at 13 weeks. The bloating has been insane in the evenings and in the mornings it doesn’t go all the way down like it used to, this probably started 2-3 weeks ago. I don’t understand when I’ve been told I’d likely not show until 20th weeks, do these people not bloat or is there a clear difference? Or do I have an early bump? I am 5.7ft and 59kg. It doesn’t entirely bother me but it just seems so early when baby is only around 6-7cm.