Shoulder and leg pain aren't among the classic, well-defined symptoms of PMS, but general body aches, joint pain, and muscle pain do fall under the broader "somatic symptom" umbrella that some women experience premenstrually.

According to Goldman-Cecil Medicine, more than 150 symptoms have been associated with the menstrual cycle, and PMS is defined by a mix of physical and emotional symptoms that appear cyclically before menses and resolve with menstruation. The commonly cited somatic symptoms are:

And emotional/mental symptoms:

Bradley and Daroff's Neurology also specifically notes backache as a recognized PMS symptom alongside depression, irritability, fatigue, appetite changes, bloating, breast tenderness, and nausea (Bradley and Daroff's Neurology in Clinical Practice).

Isolated shoulder pain and leg pain are not typically listed as hallmark PMS features in the standard diagnostic criteria (including DSM-5 criteria for PMDD, its more severe variant - Berek & Novak's Gynecology, p. 1101-1102). However:

Important caveat: PMS is a diagnosis of exclusion, confirmed by prospective symptom charting across 2-3 menstrual cycles showing a clear cyclical pattern (worse premenstrually, resolving with or shortly after menses onset). Fewer than half of women who self-report PMS actually meet this pattern when tracked. If shoulder or leg pain occurs without a clear cyclical relationship to your period, or is severe/persistent, it's worth having it evaluated separately, since musculoskeletal pain has many other common causes (posture, overuse, referred pain, anemia-related fatigue, thyroid issues, etc.) unrelated to the menstrual cycle.

If you're trying to figure out whether your specific pain is PMS-related, tracking it on a calendar for 2-3 cycles alongside your period dates is the most reliable way to tell.

Shoulder pain and leg pain are not typical early pregnancy signs on their own, and they are not on the standard list of early pregnancy symptoms (missed period, nausea, breast tenderness, fatigue, frequent urination). But depending on the pattern, each can mean something specific worth paying attention to:

This is the important one. Pain right at the tip of the shoulder (where the shoulder meets the arm, not the neck or upper back) during early pregnancy can be a sign of an ectopic pregnancy with internal bleeding. Blood pooling in the abdomen irritates the diaphragm, which refers pain up to the shoulder. This is a recognized red flag in surgical references - Bailey and Love's Short Practice of Surgery lists shoulder tip pain among the symptoms/signs of ectopic pregnancy, alongside abdominal pain, vaginal bleeding, dizziness/fainting, and shoulder tip pain that worsens with a positive pregnancy test.

Red flags that would make this urgent:

Ectopic pregnancy is a medical emergency. If shoulder tip pain occurs with any of the above and you have a positive pregnancy test or missed period, seek emergency care immediately, not just a routine appointment.

Mild leg aches/cramps are common in pregnancy generally (later more than early) due to circulatory and hormonal changes. But isolated, one-sided leg pain/swelling/redness/warmth (especially calf pain) can be a sign of a blood clot (DVT), which pregnancy increases the risk for. The CDC's maternal warning signs specifically flag "severe swelling, redness, or pain of your leg" as something to get checked urgently, any time during pregnancy.

Shoulder and leg pain by themselves are weak, nonspecific signals of pregnancy at all, they're far less reliable than a missed period, positive pregnancy test, nausea, or breast tenderness. But if you know or suspect you're pregnant and develop:

these are not things to wait out. Otherwise, if it's just generalized mild aching without those accompanying features, it's more likely coincidental or related to normal musculoskeletal strain rather than a pregnancy sign.

If you're trying to determine if you're actually pregnant, a urine pregnancy test (accurate from about the first day of a missed period) is far more reliable than any combination of aches or pains.

Yes, frequent urination can be a sign of both, and it's actually one of the classic overlapping symptoms that makes PMS and early pregnancy hard to tell apart just from symptoms alone.

In the days before your period, progesterone and estrogen fluctuate, and this shifts fluid balance in the body. Many women retain fluid (bloating, breast swelling) during the luteal phase, and as hormone levels drop right before menstruation, that retained fluid gets released, which can increase how often you need to urinate.

Frequent urination is a well-recognized early pregnancy symptom. It happens because:

This symptom typically shows up in the first trimester and can persist or worsen later in pregnancy as the uterus grows further.

Frequent urination alone won't tell you the difference; it overlaps significantly with breast tenderness, bloating, fatigue, mood changes, headaches, and mild cramping, all shared between PMS and early pregnancy. A few things that can help point one way or the other:

Bottom line: the only reliable way to know if it's pregnancy is a urine pregnancy test taken from the first day of a missed period (or about 2 weeks after suspected conception for early sensitivity). Symptom-spotting alone can't reliably distinguish the two given how much overlap there is.