One of the most common questions for women who are pregnant, are when do pregnancy symptoms start? This is a very good question that is very interesting to anyone who wants a good answer.  They can start very early in the pregnancy, as early as a week or so of becoming pregnant.  The first sign of course is a missed period and usually is the first clue that you may be pregnant indeed.  Another early sign is morning sickness and can occur very early in the pregnancy as well.  If you think you may be pregnant, then these can give you a good indication.