I'm almost 18wks and have my anomaly scan on 18th February but for whatever reason I feel like I'm not pregnant. Although tummy is starting to get bigger, I don't feel the little gas bubbles like I used to. I'm starting to think these were only really gas in the first place. DP is away now for a week abroad so I have no one to vent onto, in a nice way I mean. How can I reassure myself everything is ok?