I have veins all over my chest and my period should come next week... could i be pregnant?

Check preg test: First step is to check a pregnancy test at home. Anyone having sex is at risk for pregnancy. A home pregnancy test is cheap and reliable. If positive then this explains your symptoms. Usually we recommend waiting until you miss your period before testing. Consider scheduling a physical exam to evaluate the veins on your chest to make sure nothing abnormal is going on

Depends: If you had sex since your last period, you could be pregnant. Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about 3 weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex, if you have sex. Get HPV vaccine