Ultrasound at 32 weeks 4 days

Jessica • 1 angel boy 💙 1 beautiful little girl 💖🌈

So we had an ultrasound to make sure baby was growing normally, it turns out that she is right on schedule weighing 2.2 kg which is in the 43 percentile according to the tech, as I was laying there I started to get super faint and nearly passed out so I was only watching for half of it sadly but she didn't want to show her face to mummy and daddy! And was moving around heaps so the tech couldn't get a clear reading of her brain activity until the end (what ever that means) I found out that she is already in the head down position which I could kind of tell seeing as I was feeling quite a bit of pressure down there the past couple of weeks. Also there is some calcification on the placenta which has me a little worried but he didn't seem to worried about it? Should I be concerned or did people have this happen and things be ok?