CRSSD festival â@crssdfest. The final Fall '16 lineup $135 weekend passes will be gone by end of the day! Tickets: http://ticketf.ly/29ytWz5 pic.twitter.com/0Px2ezB4jz.
The quad screen is usually done between 15 and 20 weeks of pregnancy. You'll have a blood sample taken and sent to a lab for analysis. Results are usually available in about a week. The test measures the levels of four substances in your blood: 1  alpha-fetoprotein (AFP), a protein made by the baby.
If you're pregnant as a result of a fertility treatment such as in vitro fertilisation (IVF), you'll probably have an ultrasound as early as four or five weeks into your pregnancy. Read more about what scans you'll have when you are expecting twins.