Pregnancy-like symptoms before your period

Sore breasts, tiredness, cramps, feeling emotional: if you’re getting pregnancy-like symptoms before your period is due, you’re not imagining them. But they happen in lots of cycles where there’s no pregnancy too, and what’s possible depends on exactly where you are in your cycle.

Why timing matters

Your hormone levels change through your cycle, and PMS is thought to be linked to those changes. That’s why sore breasts, bloating, tiredness, mood changes and food cravings are so common in the days before a period, whether or not you’re pregnant. Our guide to pregnancy or PMS compares the symptoms one by one.

Pregnancy itself only starts to make a difference once a fertilised egg has implanted, usually 6 to 12 days after ovulation. That’s when it starts making hCG, the pregnancy hormone, and it takes a few more days to build up. The NHS says early pregnancy symptoms can start once hCG kicks in, usually around 4 to 6 weeks of pregnancy, counted from your last period. That’s around the time your period is due, or after it.

Here’s what that means at each point, in a 28-day cycle.

A week or more before your period is due

That’s around 7 days after ovulation, or earlier. If an egg was fertilised, it may not have implanted yet, so there’s no hCG for a test to find and no pregnancy hormone to cause symptoms. Symptoms at this point are much more likely to come from your normal cycle.

If you feel a dull ache or sharp twinge on one side, it may be ovulation pain, if you ovulated later than you thought. It usually happens about 14 days before a period and lasts from a few minutes to a day or two. Some people have a little bleeding or discharge with it.

A few days before your period is due

About 9 to 12 days after ovulation. If you’re pregnant, implantation has often happened by now, and hCG is just starting to rise. Some people notice light spotting or mild cramps around this time, but it isn’t certain these are caused by implantation, and many people notice nothing.

Early tests can be used from about 5 days before your period is due, which is about 10 days after ovulation. They pick up some pregnancies that early, but not all, so a negative now doesn’t tell you much. Most symptoms you feel at this point are still the same ones you’d get before a period.

On the day your period is due

About 2 weeks after ovulation, and 4 weeks pregnant if you are pregnant. This is the day most pregnancy tests are designed for. A missed period is often one of the first signs of pregnancy, and symptoms like feeling sick usually start around now or over the next couple of weeks.

Even now, a negative test can be wrong. One study found that on the day women expected their period, about 1 in 10 pregnancies hadn’t implanted yet. If your period doesn’t come, test again a few days later.

If your period is late

If your period is late and your test is negative, wait a few days and test again. If it’s still negative and your period hasn’t come, speak to your GP. See pregnancy or a late period?

If your cycle isn’t 28 days

Ovulation usually happens 10 to 16 days before your next period, not on a fixed day. So count back from when your period is due, rather than forward from your last one. In a 35-day cycle, for example, you might ovulate around day 21, and everything above happens about a week later.

If your cycles vary a lot, it’s hard to know when your period is due, so test at least 21 days after you last had unprotected sex. If you’re having fertility treatment, test on the date your clinic gives you. Testing early may give a false result.

Could it be pregnancy?

Things that make pregnancy more likely:

you’ve had unprotected sex this cycle, especially in the few days before ovulation or on the day itself. Sperm can survive for up to 7 days
you’ve noticed things you don’t usually get before a period, like feeling sick, a metallic taste or being sensitive to smells

But none of these is certain, and the NHS says you may not have any symptoms at all to start with.

Could it be a urine infection?

Needing to pee more often is an early pregnancy sign, but pain or burning when you pee can be a sign of an infection. If you think you might be pregnant and have symptoms of a urine infection, ask for an urgent GP appointment or call NHS 111.

Getting through the wait

Decide in advance when you’ll test, and try to stick to it. Testing very early means more negatives that might not be right. Our guide to the two week wait has more ideas for coping.

Questions people ask

Can you feel pregnant a week before your period?

Some people notice symptoms, but they’re usually the same ones you’d get before a period. A week before your period is due, a fertilised egg may not even have implanted yet.

Is spotting before my period a sign of pregnancy?

It can be. Light spotting in early pregnancy usually happens around the time your period is due. But spotting can have other causes, including ovulation, so it can’t tell you on its own. If you could be pregnant, get any bleeding checked.

My period is due tomorrow. Should I test now or wait?

You can test now with an early test, but a negative isn’t final. Testing from the day your period is due is more reliable, and if it’s negative and your period doesn’t come, test again a few days later.

Can you have pregnancy symptoms before implantation?

Not from the pregnancy itself. Before implantation there’s no hCG, so any symptoms come from your normal cycle.

When to get help

Mild cramps that ease with rest are usually nothing to worry about. But if you’re pregnant, or think you could be, get urgent advice from your maternity unit, an early pregnancy unit or NHS 111 if you have:

any bleeding or spotting, even if it’s light
tummy pain that’s severe, on one side, or hasn’t eased after resting for 30 to 60 minutes
pain in the tip of your shoulder

Call 999 if you have bleeding along with severe tummy pain, pain in your shoulder, or feeling sick, faint or dizzy, or if the bleeding is heavy (soaking a pad soon after putting it on). Also call 999 if you have sudden, sharp and intense tummy pain and you feel very dizzy or faint, feel sick or look very pale. These can be signs of an ectopic pregnancy or a miscarriage that need treating straight away.