I took Rosie to the doctor yesterday for her two month check-up. She's growing well, around 50th percentile overall if you balance things out.
The doctor taught us a new trick. That is, Rosie's strength almost doubles right after feeding. I fed her with the bottle, and the doctor had her do tummy time. Rosie lifted her head up three inches off the ground, not just one inch. She held her head and body up in the normal crawling position for an extended period of time. I showed it off to my family later, and they were super impressed.
The doctor was not impressed, though, to learn we've been doing tummy time for months now. The doctor said we should START tummy time now. Also, holding her up so she can on her feet is another thing I shouldn't have been doing. Oops.
Rosie sometimes attempts to reach out and grab things. Apparently, six months is when they can consistently grab things. Right now, she just aims and misses, because her muscles aren't developed enough.