It ahs been almost 12 months since our bfp but I thought I would add my thoughts. For both our children we waited until 9 1/2 weeks. We wanted to wait until 12 but it was so hard. Especially second time as I popped out from our missed af. Our parents had to know first so we had to tell before people started guessing. We waited just to be on the safe side. Although 9 weeks still was not over the safe 12 weeks.