Also called: pregnancy exhaustion
As you enter your third trimester at 28 weeks pregnant, you might notice a distinct return of the profound fatigue that characterized your early weeks. This isn't just ordinary tiredness; it's often described as a deep, pervasive exhaustion, and it's a very common experience as your body continues its remarkable work.
At this stage, the reasons for fatigue are often a blend of factors unique to late pregnancy. The physical load on your body has significantly increased, and this growing demand requires more energy from you. Additionally, disrupted sleep frequently becomes a factor in the third trimester, whether due to discomfort, frequent trips to the bathroom, or an active mind. This combination can leave you feeling much more drained than you might expect, even after a full night in bed. It's a different kind of fatigue than the early weeks, where hormonal shifts like those driving breast tenderness at 8 weeks pregnant were primary contributors; now, it's more about the sheer physical effort and sleep quality.
One of the most common reversible causes of fatigue in pregnancy is iron deficiency. It's an important consideration as your blood volume expands and your body prioritizes iron for your baby's development. If you're feeling particularly drained, it can be helpful to discuss with your care provider whether checking both your ferritin and hemoglobin levels is appropriate. While hemoglobin is often checked, ferritin provides a clearer picture of your iron stores. Understanding these shifts, much like tracking changes such as breast tenderness at 12 weeks pregnant, can bring a sense of clarity and allow you to make informed decisions about your well-being.
Beyond iron, it's also worth noting that thyroid function can change during pregnancy. If your fatigue is accompanied by other shifts like unexpected weight changes or feeling unusually cold or warm, a conversation with your provider about checking your thyroid-stimulating hormone (TSH) level might be a good step. Paying attention to your body's cues, similar to how you might have observed changes like breast tenderness at 13 weeks pregnant, is key to understanding what's happening and collaborating with your care team. Remember, your provider is your best resource for your specific situation and any medical concerns.
