I would start taking folic acid asap - best to be taken up month or more before TTC. Elevit is the best as it has double the amount of folic acid as most other brands but is a bit expensive.

Gender swaying. well from what i know you should DTD the day before ovulation and every other day there after to get a DS. If you TTC more than 1 day before ovulation you will have a higher chance of getting a DD.

Good luck!!