I had similar problems, so I know how you feel

. We started trying when DS was a few months shy of 3 and it took us over a year to finally get pregnant. My kids are 4 1/2 years apart and though it does present some issues it has worked out great

. In general my DS is very protective of his sister and will even play Polly Pockets and dolls with her

. She also drives him crazy wanting to play with his toys that she is really not gentle enough with, or wants to go with him to things he really doesn't want her to

. I, however, think that is pretty much the norm no matter how many years there are between them

. I look at it this way, other then a few years in elementary school there is such an age difference (not to mention the sex difference) they will not be in the same schools at the same time, and teachers won't be able to compare them, (I am only 14 months younger then my sister so that was a real pain for me growing up), and I only have to pay for one college education at a time

.
Hang in there and don't give up hope. You could try the old African wives tale I tried when I got pregnant with my DD. According to Iman (this is where I got this from when she was on a talk show while she was pregnant with her daughter) Somalian women believe that if you hold a baby you will get pregnant. My brother had just had his son when I had been trying for a little more then a year. I went to the hospital the day he was born, which was right before I knew I was supposed to ovulate, and of course held him. The next day was what I believe was my ovulation day, so of course my DH and I did the obvious hoping for the best. Well I got pregnant

!!! To this day I call my nephew my good luck charm

and his parents made me his godmother

. I am sure it was just a coincidence

, but it may also have been the positive thinking on my part that holding my nephew might just do the trick

.