# Early pregnancy symptoms and testing

> Pregnant or PMS? How to tell, and what to do next

Category: Pregnancy & postpartum · 4 min read · Written by the Splash team · Sources checked October 2026
URL: https://splash.care/learn/pregnancy-postpartum/early-symptoms

## Quick answer

- A missed period is the most common early sign.
- Early symptoms often look like PMS.
- Test from the first day of a missed period. A negative early test is less reliable, so retest.
- One-sided pain, shoulder tip pain or bleeding in early pregnancy needs urgent help.

The two-week wait is a rollercoaster. Every twinge suddenly feels like a sign. The tricky truth is that many early [pregnancy](https://splash.care/learn/fertility-ttc/early-pregnancy-signs) symptoms look a lot like [PMS](https://splash.care/learn/glossary/pms). However this moment feels for you, hopeful, scared or somewhere in between, it is OK to take it one step at a time.

## Common early signs

The NHS says symptoms usually start when you are around 4 to 6 weeks pregnant, and that not everyone has all of them.

- A [missed period](https://splash.care/learn/cycle-basics/late-period)
- A very light bleed or [spotting](https://splash.care/learn/glossary/spotting) around the time your [period is due](https://splash.care/tools/period-calculator) (sometimes called [implantation bleeding](https://splash.care/learn/glossary/implantation-bleeding))
- Feeling or being sick, which can happen at any time of day or night, not just mornings
- Feeling extremely tired
- Sore, larger or tender [breasts](https://splash.care/learn/body-literacy/breast-changes)
- Needing to pee more often, without pain
- Constipation
- More vaginal [discharge](https://splash.care/learn/body-literacy/discharge-decoded), without soreness or itching
- A metallic taste, a sensitivity to smells, or new cravings and food dislikes
- Mood changes

**Myth:** You can tell you are pregnant by how you feel before your period is due.

**Fact:** Symptoms overlap so much with PMS that there is no reliable way to know by feel. A test is the only way to be sure.

## Testing: when and how

All home tests look for the hormone [hCG](https://splash.care/learn/glossary/hcg). Most are most reliable from the first day of a missed period. A few very sensitive tests work earlier. If you do not know when your period is due, test at least 21 days after the unprotected sex. The NHS says any time of day is fine; you do not have to use morning pee.

- A positive result is almost certainly right.
- A negative result is less reliable, especially if you test early. Wait a few days and test again.
- Taking the pill or other hormonal contraception does not stop a test working.
- Still no period after a second negative test? Speak to your GP.

**Quick quiz:** When are most home pregnancy tests most reliable?

1. The day after sex
2. From the first day of a missed period
3. Only with first morning pee

Answer: From the first day of a missed period. The NHS says tests are most reliable from the first day of your missed period, and that any time of day is fine.

## If the test is positive

Contact your GP or midwife, or refer yourself to your local maternity service online, to start your pregnancy care. Start taking 400 micrograms of [folic acid](https://splash.care/learn/glossary/folic-acid) a day if you are not already. If the pregnancy is unplanned, or you are unsure what you want, you can ask a GP, midwife or sexual health service about all your options. You will not be judged.

## Feeling very sick?

Morning sickness is very common and usually eases by weeks 16 to 20. It can be severe, though. The NHS says to call your midwife, GP or 111 if you cannot keep food or fluids down for 24 hours, have very dark pee or have not peed for 8 hours, feel faint or weak, or are losing weight.

> **Splash says:** test a few days after your period is due if you can. Waiting is hard, but it gives you the most trustworthy answer.

### When to see a doctor

Get urgent help the same day if you might be pregnant and have tummy pain low down on one side, pain at the tip of your shoulder, bleeding or brown watery discharge, or feel faint. These can be signs of an ectopic pregnancy. Call NHS 111 or your GP. Call 999 for sudden severe pain, dizziness, looking very pale or fainting.

## Sources

1. [NHS: Signs and symptoms that might mean you’re pregnant](https://www.nhs.uk/pregnancy/trying-for-a-baby/signs-and-symptoms-that-might-mean-youre-pregnant/)
2. [NHS: Doing a pregnancy test](https://www.nhs.uk/pregnancy/trying-for-a-baby/doing-a-pregnancy-test/)
3. [NHS: Vomiting and morning sickness](https://www.nhs.uk/pregnancy/common-symptoms/vomiting-and-morning-sickness/)
4. [NHS: Ectopic pregnancy](https://www.nhs.uk/conditions/ectopic-pregnancy/)

This is general information, not medical advice. Splash can’t diagnose. If you’re worried, talk to a GP, pharmacist or sexual health clinic. In an emergency call 999 (UK) or 911 (US).