Sims 4 pregnancy

There is one thing I find a little unrealistic about sims 4 pregnancy. Right after my pregnant female sim takes the pregnancy test and finds out she's pregnant, her belly gets a little bigger. In real life, no one starts showing right away. When I was pregnant with my twin girls in real life, I didn't start showing until I was 16 weeks along. I think it would be more realistic if sims bellies didn't get bigger until the 2nd trimester. That's how it was in TS2 and TS3. I also think pregnant sims should be able to work until the end of the 2nd trimester/beginning of 3rd trimester. Once they ender the 3rd trimester, they should get maternity leave. I do like most other aspects of pregnancy in TS4. I do like now being able to breastfeed and taking the pregnancy test to find out your sim's eggo is preggo.