updated 03/12/2016 AT 12:10 PM EST  •originally published 03/11/2016 AT 06:10 PM EST  of herself and a friend showing off their very different pregnant bellies – despite being just four weeks apart – she never imagined the reaction would be so crazy.  "I thought itâd be very obvious that we would carry differently," Duncan, 27, tells PEOPLE. "I'm clearly extremely tall and hold a lot more muscle mass. Plus it was [my friend] Natâs third pregnancy. It's my first."  Duncan, who is due with her first son on March 15th, wanted to show that every body is unique, and we shouldn't judge each other  Plus, women shouldn't be afraid of how their  when they start carrying a baby.  BUMP UPDATE 37 weeks.... Only 21 days to go Well well Little D you have caused quiet a commotion, you are most...  "It also shows women that pregnancy isnât all about going from one extreme to another – women shouldnât fear pregnancy," Duncan adds.  Duncan, a HIIT trainer and bodybuilder in Australia, hasn't had to  too much during her pregnancy.  Tonight's workout was on point, even though sooooo much is now modified for me, I am SUPER grateful for my pre pregnancy...  "My approach to my fitness now [that I'm] pregnant has been a slow progression of modifying exercise after exercise as I get further into my pregnancy," she explains. "I've enjoyed training while pregnant and havenât felt like it's more effort – itâs just a motherly instinct to taper particular movements as you feel the body change and ability lessen."  And her diet was already  – for the most part.  "Besides having scrambled eggs instead of runny eggs, thankfully I didnât have to change my diet," Duncan says.  She's enjoyed her pregnancy so much that she wants to add to the family – very soon!  "If all goes well, I plan to fall pregnant again this year," she says.
Chontel Duncan says she's enjoying her pregnancy and plans on getting pregnant again later this year if everything goes well