Hi guys, Please put my family's mind at ease

Star is our 1st baby, baby. We've had German Shepards before. We're just wondering if it's normal that she weighed 2.1 lbs at 10 weeks, 2.1 lbs at 12 weeks and 2.2 lbs at 14 weeks. She's gained an ounce in about 4 weeks. Is this ok. I guess I'm still remembering our big guys gaining at leaps and bounds. Just wondering. Do yorkies have growth spurts sometimes too. The breeder thought she might be around 5 to 5 1/2 lbs full grown. Just wondering if we're going to make it