What's going on?

We're at T-minus 67 days, now, and Amanda's really dealing with quite a bit. She's often exhausted, and her back and sides are usually in some amount of pain. She talks about the baby "pedaling" on her lowest ribs. She's usally really good at dealing with discomfort, so I know these are pretty serious pains right now.
As for the dad's-eye view? I'm just doing my best to figure out what's going on. The baby has hiccups? Sorry, I can't feel that no matter how hard I try. Some kicks, though, I can really feel and even see. And it seems like they have to hurt. But Amanda insists they don't really.
The pedaling, however, that seems to hurt. But I can't begin to imagine what it feels like to have someone pedal against your ribcage from the inside.
I'm guessing this is what most dads to be go through. We' re excited about the baby, nervous about what we'll be doing ... and just lost regarding what the mom to be is going through.
I try to do whatever I can to help her and make things easier ... give her some support if she is standing up from a low chair; go to the kitchen to grab whatever it is she needs; etc. And she tried to describe what she's feeling. But this is just one of those things that I don't think I'm ever going to fully understand.

Books help ... sorta
That's why I just try to read the various books and magazines we have around on the subject. And none is more entertaining than the circa-1915 The Care and Feeding of Children I mentioned before.
With this book, at least, I feel that I have a better understanding of what's going on than some "experts" did 80 years ago.
For example:

What are the most essential things in the clothing of infants?
That the chest should be covered with soft flannel, the limbs well
protected by not confined, and the abdomen supported by a broad flannel band,
which should be snug but not too tight. ... No pins should be used, but,
instead, all bands about the body should be basted. The petticoats should be
supported by shoulder straps.

Of what use is the band?
It protects the abdomen, but its most important use is to support the
abdominal walls in very young infants, and in this way to precent the occurrence
of rupture.

Ruptured abdomens? Is that a common problem in babies? I haven't seen that anywhere else.
Anyway, we're under 10 weeks and getting more and more nervous.