second baby bump coming too soon?

I'm almost 5 weeks with my second, and while I still fit in my regular clothes-they sure aren't comfortable. I didn't start this feeling until 12 weeks with my first-and then I popped shortly after that! I'm worried this bump might appear quickly (especially since I'm only 5.5 months pp). 
Does anybody have any bump pictures comparing first and second pregnancy- specifically early on? 
Did you get your bump super early?