16 weeks pregnant

So today I am 16 weeks pregnant. I can't tell if I am bloated or if I actually have a little bump..I know they say if it's baby then it will be firm but not to be gross or anything but I haven't pooped in a few days so I had to take a laxative, but not
Sure if my stomach is bigger because I haven't pooped in a few days. This is my third baby and I know every pregnancy is different.
With my second I ended up have a little baby bump at 14-15 weeks pregnant.