Hiya there,
I currently take Pregnacare TTC and Evening Primrose Oil! Pregnacare is quite expensive but I am from the UK and went into Holland and Barrett and got buy one get one half price. So all in all I paid £15 for EPO and Pregnacare.
I'm taking Pregnacare as it includes a variety of vitamins. There is a whole list on the back, including folic acid etc. Just general day to day vitamins. I'm taking EPO for the first two weeks of my cycle to increase my EWCM. It is said you should only take EPO up to ovulation as it can apparently cause small uterine movements which can cause problems for the egg to implant into the womb! I'm not sure how effective taking these vitamins will be as I started taking them 12th December, the beginning of my cycle and I am now on cycle 22/23! Just a waiting game now! Also, I have heard of Agnus Castus, if you really struggle with getting pregnant that is suppose to help massively to regulate and also using preseed (fertility aid lube) during bd will help. I have seen loads of people swear by preseed! I have only been trying for a few months myself, so if I don't get BFP soon, I shall be trying some new products to go with what I am already taking. I hope this helps 😊