Contraceptives and Infertility

Q: I married recently simply Alhamdulillah according to your esteemed advice.   Please note, due distant land (Me and my wife will be moved in Gulf Inshaallah, I request u to make dua allah make easy both of us with Ahfiyath) and Physical weakness (fear) of my wife, we are planned for Family planning.  I was stay with my wife 1 month after my Nikah and currently I am in Gulf due to my job.  During Sexual intercourse with my wife, I used withdraw method so that sperm will not enter into my wife private part.

My mother-in-law also advised to my wife is that, do family planning for couple of years due to no one is there near with you (i.e. in Gulf) and physical weakness (fear).

1. Could you please advice which is the best method can be used during Sexual Intercourse for family planning?
2. Whether it is correct (i.e. before I used withdraw method)?

I seek the advice according to Sharia with keep in mind of my wife weakness.