Trying to fall pregnant!!!

Hi Everyone 
I'm looking for some advice, especially from those who have the same experience. I'm trying to fall pregnant and been trying non stop for the last year- but have had no sign of pregnancy atall. I do have gni problems, such as entromentrois & have very few eggs on on ovary. And my partner has no problems to date. Every month I begging for my period not to happen! I am even dreaming about falling pregnant, but this always stays as a dream! I've currently late on my period by 3 days, and hoping that I'm pregnant. I've been feeling sick more in the morning and late a night, and very tired to the point I'm always tired. Walking about work today, I felt faint or light headed- so on my lunch break poped out to grab a pregnancy test- which came out negative. I don't know, If this is signs of my period coming or my period my be delayed due number of different reasons.  I currently have an water infection could this be the cause? Is this a sign of pregnancy? Be grateful to speak to overs in the same boat or know someone who has been