Suggest Treatment For Infertility

heya im a 18 year old girl . i have been trying for a baby with my boyfriend now for over 2 years . ok so your probally sat in front of the computer thinking im not going to help this girl shes young and got her whole life ahead of her but please i need your help . something might be wrong with me seeing as i havnt consived. i dont use condoms or enefing like that so i cant see whats the problem please help me !