I have a bit of time on my hands and I was thinking - I found up to 20 weeks I was very anxious of the risk of miscarriage, I had nausea, I couldn't tell people as much as I wanted to, I was exhausted, I had dreadful constipation.
Now I am 24 weeks and can feel the baby moving regularly and I'm not so anxious, I am recalling the aches and pains of later pregnancy, the inability to sit up easily or bend down, and I can't sleep for needing to wee!
On reflection for me, it's the first half because of the uncertainty (4th pg, 2nd baby)