Ultrasounds

How many ultrasounds did everyone get? I want to see my little guy one more time but I don't think I will get to. I had one at 8 weeks because we needed to pinpoint a date better cause I was always irregular and then I had one at 18 weeks for the anatomy scan. Do they another before baby is born or do I have to wait till I deliver to see him again? My next appointment is tomorrow. I'll be 27 weeks and 1 day tomorrow.