So my dr. has written me a referral for an u/s but doesn't seem to mind when I do it. I'm out of the country at the moment and I told him I'd go in for it when I get back. I can either go when I'm 5w3d from conception (7w5d from LMP) or 6w3d from conception. I was charting with OPKs so fairly concrete on when I conceived. Obviously desperate to go as soon as possible but don't want to go before I have a chance of seeing a fully formed sac and hopeful heartbeat... Can't take a disappointing scan but also having trouble waiting.....Thoughts??