Well, I tried 4 or 5 more times on Sunday to knit 6 rows, and still ended up with 0. It doesn't [ay to knit when tired, frustrated and pregnant.
Monday went better, I ended up with 8 rows completed (although I probably knit close to 20 and had to keep pulling them out because I kept adding a stitch).
Today I completed the 4 rows to make 12 on the first half of the bootie cuff, and then did another 4 on the other half of the cuff (although this one took me three tries to get to 4 rows, pulled out 2 rows twice due to extra or dropped stitches).
Tomorrow I endeavour to complete the last 8 rows on this second half of the cuff. I find knitting two rows at a time and then taking a break for an hour means fewer mistakes.