dont know what to do but give up but really dont want to

I had the implant for 6 yrs as of September 15 2015 I had it removed in hoping I could get pregnant, ive been with my boyfriend for 3 and half years now I'm hitting 35 and he turned 33, here it is 2 years no birth control, and still not pregnant! I'm beyond ferious, my boyfriend has no children, I only have 2 from my previous marriage who are 6 years apart. I'm beginning to think I can't get pregnant. not sure how much fertility clinics are and if I'm even able to afford it. ready to give up tired of reading negative pregnancy test.😞