Here’s my 2 cents worth:
It’s going to be really hard, because either the drink has alcohol, or it has sugar in it. It’s either or. Most mocktails are pretty sugary. Sure you can substitute the soda for diet soda but it’s gonna be hard to get low-carb versions of popular mocktail ingredients like grenadine syrup, fruit and fruit juices. Yeah they do exist at specialist retailers but your average cocktail bar is not going to stock them. And they’d be made with artificial sweeteners anyway…
I honestly do not think that small amounts of alcohol harm you in any way. For the record, my definition of small is one unit of alcohol every two to three weeks. That was what I was on before I got pregnant.
For what it’s worth, I think all the conditions have to be right before baby decides to make an appearance. We’d been trying for almost four years and were on the verge of giving up. But looking back I realize that there were several important impediments to the arrival of a baby, each of which we gradually solved over the years. At first we were living in a house that was too small and baby would have had to sleep in a chest of drawers. We moved to a bigger place. Then there was my diabetes - dx June 2010 with A1C of 20%, so I’d been walking around with crazy blood sugars for some time. Definitely not a good time for baby. I worked like mad to normalize my blood sugars and by Sept 2010 they were OK. But there was one last remaining impediment - the Novorapid (Novolog) I was on took 2 hours to work for me. But in pregnancy, you have a one hour post-meal target, which means that I was never going to get sufficiently good control on Novorapid and would never have hit any of the pregnancy targets. On April 11th I switched to Apidra which takes 10 minutes to start working. One week later, baby was conceived. Coincidence? I don’t think so.