About five to 10 days after conception, some women notice light spotting when the embryo implants In fact, fatigue is often one of the first signs of pregnancy Could I be pregnant? Some symptoms may appear in the time I lost a period or a week or two later. A couple of them even can alert until then Top 10 signs of pregnancy. If you're extremely tuned in to your body's rhythms, you may begin to suspect you're pregnant soon after conception. But most ...