If screening tests show a lower risk, most parents choose not to put themselves, or their unborn baby through further, more invasive tests. This ultrasound can determine the number of babies, as well as the type of twins. I have my 12 week scan tomorrow,and yet again, have to go thru the pain of drinking a litre of water,and holding it for an hour before my scan not to mention DURING!! A full bladder moves bowel out from the pelvis into the abdomen, helping visualisation of the pregnancy, uterus and ovaries. Most units will offer you a screening test at the same time.
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Back to Your pregnancy and baby guide. This is sometimes called a nuchal translucency scan. Will involve lying back on a vaginal scan. Sometimes the results of a first trimester scan may be inconclusive or uncertain, and need to be combined with your clinical history and blood tests serum BhCG. March During your pregnancy, you will be offered a number of tests and scans. Sometimes a pregnancy may not be developing in the correct place an ectopic pregnancy.