Showing at 4-5 weeks

Jessica • I’m 28 years old, been married for 8 years and have a beautiful baby boy who’s almost 3 and I have another baby boy on the way!
I'm a bit of a bigger person but not by much. I see that yall show at 4-5 weeks and I feel to see if any thing hard and there's nuthin. Is it post to be hard or not? I Just got to 4 weeks and 1 day pls help me