I had 3, one at 5.5 weeks, one at 12 weeks and one at 19 weeks.

Next pg I think I will try to limit it to just two (12 and 18 weeks) but I really do wonder about the possibility of doing damage, and I hope I am not in a situation where I will have to have extra scans, although if they were needed for medical reasons then I think I would have them anyway.