I just don't get it

I don't get it I have regular periods they come like clock work I'm due the 2nd of December my husband and I have been married going on 11 years and quit preventing 6 months into our marriage and still have yet to get pregnant I don't have a big lump sum of money to pay for the testing I just don't know what to do :( I feel like we are running out of time I'm 32 will be 33 next month