30 week check-up

So, today was my 30 week check-up. I am actually 30 1/2 weeks prego. I gained 3 lbs, which the doc said is a total of 15 lbs so far. She said I am doing really good on my weight, and that it doesn't matter if I gain less than the 25 lbs she wanted me to gain. Because he seems to be doing great. She measured me, and I am now measuring 34 weeks!!! (3 1/2 weeks ahead). If he continues to grow like this, she said they will do an ultrasound at around 36 weeks to see how big he is and I guess to see if she needs to change the due date and induce early. Heard the heart rate, it was in the 150s as usual. The only problem is when they asked me about fetal movement, I told them he was still moving, just not as much "since he is running out of room in there". The doc looked concerned and said since I am only 30 weeks he shouldn't be out of room and should be moving just the same. So, they hooked me up to the fetal monitor and watched his heartrate and my contractions for about 30 min. I was having some small contractions- but nothing major. Nothing regular. And his heart rate was fine the whole time and was having accelerations in the rate! So, I was good to go. That is about it. I go back in two weeks and I guess I stay on biweekly visits until about 36 weeks maybe?