No type of contraceptive is 100% effective. There have even been rare cases that both parties had surgical contraceptives performed, and still got pregnant. So, it is rare, but it is possible.
If you have missed your period and are pregnant, you most likely got pregnant around 14 days before your missed period.
see a doctor
The day of your missed period if your worried about being pregnant.
If your pregnant, cramping is usual. But if you're not and you missed your period that usually means your pregnant now with a bundle of joy.
You may be pregnant as you have missed your period. Take a test
no it can't tell you if you missed your period for 8 weeks
mothers miss menstrual period when she is pregnant.
only a couple of days after your missed period
You should be able to reliably test 1 to 5 days after your missed period.
Learn to type
No not likely.
Some symptoms of being pregnant before a missed period are nausea and dizziness. You may also have some breast tenderness.