My friend just gave me a book to read and I'm sure most have heard of it.. "What to Expect when your Expecting"
Just wanted to share something from it.
Possible Signs of Pregnancy:
Sign- Amenorrhea (absense of menstration)
When it appears- Following Conception
Other possible Causes- Travel, fatigue, stress, fear of pregancy, hormonal problems, illness, extreme weight gain or loss, going off the pill, & breastfeeding.