13 weeks 6 days. What should my bump be like?

Nicola • I`m a 32 year old teacher from the UK. Had my rainbow baby in September 2017 after miscarrying twice. Had a chemical pregnancy in January and now TTC #2
I'm 13 weeks and 6 days but in the mornings my belly is as flat as a pancake lol 😂 Throughout the day it does pop out a bit but I just wondered if this is just me?!xx