Could you shoot 2 hours later tomorrow morning? If so, you can test in 2 hours and if she is over 200, shoot a little bit less than you did this morning. Skipping the shot sets you back every time you do it, just when she is building momentum.
Next time, ignore the ankle biting and wait 20 minutes without feeding and retest. If your number is over 200 in 20 minutes, then you can shoot and only be 20 minutes late.