This is freaky, Gretchen!
I experienced the very same thing...and in my case there was an explanation. You see, I dutifully went to the doctor a couple of weeks after having missed my "monthly" (geez, I sound like my grandmother) and a blood test confirmed I was pregnant. The doctor and I figured out an estimated time of arrival and he scheduled an ultrasound for a few months down the road. I soon noticed premature protrusion of the belly and feared I was going to give birth to a freakishly huge child (I was mentally expecting a c-section). When I eventually had my ultrasound it was revealed that I was further along than expected.
Apparently its not at all unusual to have a couple of very light periods during the first months of pregnancy (before you even realize you are) and when I thought about it, my last couple had definitely been very pleasantly light. Since I hadn't been experiencing any pregnancy symptoms those first months (the morning sickness didn't start until I was in what I thought was my third month), I had no idea I WAS pregnant!!
So that's how my June baby became an April baby. Sooo, considering you and hubby weren't using any...um..."formal" form of birth control, perhaps that's your explanation, too!
In any event, I agree its a very cute belly!
When you do you have the next appt to hear the heartbeat?
