NHS Complementing Scan: 3 scans that work around the 2 scans you will routinely be offered by the NHS, usually at 12 and 20 weeks.
We recommend 10 + 16 + 28 weeks. If you choose to take NIPT with your 10 week scan, the blood test will be charged £240 for Harmony Test, or $99 (~£80) for Invitae NIPS.