Swelling in Feet During Pregnancy: Which Month Does It Start?

Swelling in the feet often becomes noticeable during the middle or later months of pregnancy, although it can begin earlier or vary from person to person. It commonly affects the feet and ankles more after standing, walking, or later in the day. Mild swelling that develops gradually in both feet and improves after rest is often part of normal pregnancy changes.

During pregnancy, the body retains more fluid, and the growing uterus can slow blood returning from the legs. This can allow fluid to collect around the ankles and feet. Warm weather, prolonged standing, and tight footwear may make the swelling more noticeable. Swelling on its own does not identify a particular condition, so its pattern and accompanying symptoms matter.

Swelling that appears suddenly, becomes marked, or involves the face and hands can occur with pre-eclampsia, a pregnancy-related condition that also needs assessment for signs such as high blood pressure.

Take regular breaks from standing and rest with your feet raised on a cushion. Sleeping on your side may support circulation. Choose comfortable shoes and loose socks that do not leave deep marks, and avoid sitting with your legs crossed for long periods. Gentle walking and ankle movements can help blood flow when your maternity clinician says they are suitable.

Continue drinking fluids and eat a balanced diet; do not sharply restrict salt or take water tablets unless a clinician has prescribed them. Mention persistent swelling at routine antenatal appointments so your blood pressure and urine can be checked when appropriate.

Contact your maternity team promptly if swelling is sudden or rapidly worsening, especially in the face or hands, or if it comes with a severe headache, vision changes, pain beneath the ribs, vomiting, or feeling unusually unwell. These symptoms can require urgent checks for pre-eclampsia.

Seek urgent help for swelling in one leg with pain, warmth, redness, or tenderness, or for chest pain, sudden breathlessness, coughing blood, fainting, or severe difficulty breathing. These symptoms may signal a clot or another emergency and should not wait for a routine appointment.

Ask whether the timing and pattern of your swelling fit expected pregnancy changes, whether your blood pressure needs checking sooner, and which symptoms should prompt an immediate call. You can also ask which activity, footwear, and resting position are appropriate for you, particularly if swelling is uncomfortable or affecting your daily routine.