I seriously think someone could not know. I have given birth to three little boys and not all pregnancies are that easy to feel. My first one hurt me...kicked so hard he left bruises and was only 1 lb 14 oz at birth (born at 25 weeks). I was in hard labor with him prior to having him c-section though and never felt a single contraction. My second barely moved. He was still and quiet through the entire pregnancy and had me scared to death thinking something must be wrong. He was my biggest at 6 lbs 13 oz. My last one was active but nothing like the first. So, if you had a combination of the quiet baby, the inability to feel contractions and continued to have periods (I did for the first 4 months with all of mine) I could see it. The weight gain was something I couldn't hide with mine though.
