i feel sucidal

hey im just feeling down n lost right now. why am i not getting pregnant. so many doubt running thru my head. like wat if i dont get kids and my partner gets stray away from me and leaves to find another... what if my marriage tumbles... how will i deal with the heat break that my husband left becuz i cant n not getting pregggy... infertilty is so sick... i feel like ending my life. ladies my confidence is zero. please help me out.