How common?

is it to get a negative test result using a home pregnancy test? I took one earlier this after noon only to get a negative result.

My period is about 12 days late, my nipples are sore, I felt a bit sick last week like I was getting the flu, but it would come and go, but I also just got over a cold, does having a cold affect missing your period or give you any other pregnancy like symptoms?

I know sometimes it's better to take the test in the morning with your first pee, but I'm just wondering how common it is to get negative results with home pregnancy test...

Also, is having a constant slight headache a symptom of pregnancy?

I've done a lot of research on the internet about a lot of this stuff, but I'm just wondering about some real stories.

Thanks in advance! =]
All tests everywhere cannot and never will be 100% accurate. Most pregnancy tests are over 90% accurate. Generally the cheaper pregnancy tests are less accurate than expensive ones but this is only in the realms of a few percent.

It also depends when you take the pregnancy test. Hcg is not detectable in the urine until several weeks after implantation. If you had unprotected sex less than 2-3weeks ago you'll need to wait until 3 weeks has passed and then repeat the test.

Otherwise, the most accurate pregnancy tests can be done at your doctors or a sexual health clinic.

You cant rely on 'symptoms' of pregnancy to confirm pregnancy as everyone is different everyone experiences different sensations, and they are always vague signs which could be down to anything including stress.