I am going to have my 18-20wk scan on Monday and was wondering what anyone thinks i could be having.

DD was a fairly easy pregnancy, hardly any MS, a couple of bleeds but nothing serious, i didn't get very big with her and hardly had any back pain etc.

#2 so far i am getting bigger than i was with DD, had horrible morning sickness or nausea, if i could have been sick would have been WONDERFUL!
Heartbeat on 12wk US was 153BPM

So is it a BOY or GIRL?