In some cases, paternity can be ruled out based upon blood types. If you are a blood type B- and the mother is blood type B+, a baby with type A or type AB blood cannot be yours - the father has to be someone with type A blood. Also, if the baby shows definite racial characteristics, such as the eye folds typical of individuals of Asian descent or deep skin tone typical of individuals of African descent, and neither you nor the mother have these characteristics, the father has to be someone else.
However, these are pretty vague generalities - to definitively prove (to a court's satisfaction) that you are or are not the father, you will need a paternity test. It is a painless test - you simply swab the inside of your cheek and the mother and baby have the same thing done. DNA fingerprinting is performed on all three samples, and the odds of you plus the mother generating the baby's DNA fingerprint are calculated.
Answer Go to any pharmacy and buy a paternity test kit, why tell the guy if you don't have to.
there is no actual way without scientific explanation .
see link below
"Can you have a paternity test while you are pregnant?"
Not if you want to be absolutely sure.
tell him your aborting .
The sounds they measure and listen to when doing a transvaginal ultrasound and tell you you are not pregnant are ultrasounds.
you don't tell him
You can not tell paternity by blood type. You can rule out paternity by blood type. For example, if both parents are O negative and the baby is type A positive, you can rule out paternity. The only way to determine paternity is by a DNA test. A few of the baby's hairs and the father's hairs can be sent to a lab. The lab can determine paternity.
Its really easy to tell, are your nipples real brown?
not a chance unless there is some RARE blood type of one man that is affecting your pregnancy... then doctor will do a test by injecting your belly for a blood sample from baby in that case ONLY.
count the days back on a calendar if you have trouble doing it in your head.
There is no point in doing a pelvic exam at 5 weeks. A sonogram will show if you are pregnant.
Without doing a safety inspection we can not tell you.
You will suffer from morning sickness , and have nausea.
Without waiting until there is no doubt, an over the counter test will tell you
a) to show off b) to tell you he's doing fine without you