Ok guys here is a serious update:

This week, you officially begin your fifth month of pregnancy.
(GOSH 5 months to go, and we are so not ready....)
Your baby may have reached about 12cm from crown to rump by now, and he can both feel and hear. Admittedly at the moment, all he can hear is your heartbeat and the flow of your digestive system (farting?) but soon he'll be able to detect noise outside the womb and identify your voice.
OMG does this mean we cant swear anymore????
Your baby is about 12cm long from crown to rump and she weighs about 190g. Her chest moves up and down to mimic breathing. Her blood vessels are visible through her thin skin, and her ears are now in their final position, although they're still standing out from her head a bit. (considering the parents they will still be standing out at the exit...)