The first trimester of your pregnancy can be a very exciting time. But there's lots to consider and plan for, and you’ll need to know some key things first.

By week 12, your baby is the size of a plum but fully formed, with their organs, muscles, limbs and bones in place.

Think about the prenatal screening tests you might have, and whether you want a dating scan to confirm your due date.

During week 11, you might have your first ultrasound and see your baby for the first time.

This video is about the physical and emotional changes you can expect in the first trimester of pregnancy. Mums and dads describe their experiences.

You may wish to find out early in your pregnancy if your baby is at increased risk of a serious health condition by having a screening test in your first trimester (the first 3 months of pregnancy).

Not all pregnancies lead to acne but if you have hormonal acne, it is likely to flare during the first trimester (first three months) of your pregnancy. Find out what you need to know.

During your first trimester (the first 3 months of your pregnancy) you may be offered a range of tests to check if you have any infections or health conditions.

Whether a pregnancy is planned or a surprise, hearing that you’re going to be a father is huge. This Dads Guide covers men’s feelings about early pregnancy.

Early pregnancy loss is such an individual experience, that the treatment and procedures around it are different for everybody