One thing i dont get is why you are asking this?
One can tell how far along they are in pregnancy by having an ultrasound. An ultrasound measures the fetus and then compare that measurement to what an average fetus is. If it matches to a 3 week fetus it means that one is 3 weeks into pregnancy.
I got pregnancy cramping in my second week but every one is different.
Blood work cannot tell you how far along you are as the levels vary so much from pregnancy to pregnancy, go with the ultrasound.
One line on a pregnancy test is negative but that doesn't mean you are definitely not pregnant as the test could of missed it or you might not be far enough along
A mare's gestation period is typically around 11 months. One common way to determine how far along a mare is in her pregnancy is through ultrasound imaging, which can detect the presence of a fetus and estimate its age. Veterinarians can also physically palpate the mare's abdomen to feel for the size of the fetus and determine approximate stage of pregnancy.
Since we seldom are aware when precisely conception occurs, most doctors agree a pregnancy test should be done when your period is one week late.
One can find a week by week pregnancy calender from many places. Some of the best sites where one can easily find pregnancy calender are kids health,3d pregnancy and many more.
One can find a pregnancy weight gain chart by visiting the BabyMed website. Other places that one can find a pregnancy weight gain chart are WebMD and Baby Corner.
One can find many videos which may be helpful with a pregnancy. Baby Center offers many videos from different stages of pregnancy that one can find very useful to reference.
Not all miscarriages require a dilation and curettage, it depends on how far along in the pregnancy you were. You should schedule an exam with your doctor after a miscarriage to make sure you do not need one.
I guess it really depends on how far along in pregnancy you are. It's most likely the side that the baby is laying on. However, if you still have concerns talk to your Dr.