Regarding update, the stress system is easily manageable. However, I did notice that you can take a bath and then take a shower, which double stacks the stress reductions. Furthermore, unless the time of day is late night, the lazing around option is still available despite being night time. I imagine this is another exploit to choose "laze around" instead of "go to sleep," which further decreases stress stacks.
While mucking around with the stress, I noticed that at the "Feeling fine" level around 18-20 weeks, all of a sudden the player will be stuck in the endless loop of sleeping in to reduce stress. I figured feeling fine was a middle ground and not to the point of dangerous levels, but this did not seem to be the case. And this spiraled into an endless loop of stress not reducing despite sleeping in, and even when entering pre-term labor at 30 weeks, the hospital selection was not working. This eventually ended with a gameover due to no income.
Overall it's a nice addition. The more real-life sim elements are introduced, the more interesting the process is. After all, the pregnancy is about the process and progression, and I am a sucker for highly-detailed descriptors.
Beth's progression now makes a bit more sense as well, with her attitude towards the player changing after the second pregnancy onward.