Positive test
First steps and reasons to seek urgent care.
Open informationYour complete pregnancy map
What we monitor from a positive test until birth
A normally progressing pregnancy follows a sequence of checks. Frequency and tests change when history, symptoms or findings require a different plan.
- Obstetric consultation
- Advanced ultrasound
- Laboratory and screening
- Late-pregnancy monitoring
- Nutrition
Complementary follow-upAskabide + Osakidetza · birth at the reference hospital
Early pregnancy: confirm, locate and plan
After a positive test we review the last menstrual period, cycle pattern, medical and obstetric history, medication and symptoms. The first scan is timed according to gestational age and the clinical situation.
A very early scan may not yet show everything expected. Repeating it after an interval does not by itself mean that there is a complication.
First ultrasound
What may be seen at each stage.
Open informationFirst trimester: dating and screening
The first trimester brings together clinical review, initial blood tests, the 11–13+6 week scan, chromosome screening and preeclampsia screening when appropriate.
NI/+ is available from ultrasound-confirmed week 10. It is a screening test and does not replace diagnostic testing when confirmation is indicated.
First trimester
Maternal and fetal checks.
Open information
Calderón NI/+
All chromosomes and CNVs >7 Mb.
Open information
Preeclampsia screening
Maternal risk, blood pressure, biochemistry and Doppler within the relevant protocol.
Open informationSecond trimester: anatomy, growth and metabolism
The anomaly scan around 20 weeks systematically examines fetal anatomy, growth, placenta, fluid and other parameters. It cannot rule out every anomaly.
Blood tests and gestational diabetes screening commonly take place between 24 and 28 weeks, adapted to protocol and risk factors.
20-week anomaly scan
What is examined and its limitations.
Open information
Gestational diabetes
O’Sullivan screening, results and next steps.
Open information
Rh negative
What it means and how it is managed.
Open informationThird trimester: growth and final preparation
Maternal progress, fetal growth, presentation, placenta, amniotic fluid and fetal wellbeing are assessed as clinically indicated.
Askabide’s protocol may include cardiotocography from week 36, usually weekly and always adapted to the clinical context.
Third-trimester ultrasound
Growth, presentation, placenta and fluid.
Open information
Monitoring from week 36
Fetal heart rate and uterine activity during the recording.
Open information
Preparing for hospital
Reports, warning signs and continuity of care.
Open informationA timeline does not replace an individual plan
Multiple pregnancy, hypertension, diabetes, altered fetal growth, obstetric history, bleeding or other findings may require additional checks or specialist hospital care.
Knowing when to extend, repeat or refer is also part of responsible follow-up.
Clinical sources
General information only. It does not replace an individual medical assessment or recommendation.
Reviewed 19 August 2026