I know exactly how you you feel! We were told at 20 weeks that DS was a girl. We bought girl's clothes, chose a name and bought some items for the nursery. Fast forward to 35 weeks we find out it's a boy.

Our morphology scan is 30 January and we've decided to find out again, though if they say girl I'll be asking them to triple check and also asking for more scans down the track!

I guess really it comes down to how much you want to know - I'm such an impatient soul I can't wait till the birth, but if you can handle the waiting more than the uncertainty of believing the sonograher if they say girl again then hold on!