Wanting it so Bad

My boyfriend is older than me not vy much but he's ready for a family....We started trying last year with no luck...I was really unsure about it and was 50% on board....After trying a qhole year and having a few missed periods and scares I have felt what it feels like to get excited about a possible plus sign. Now I am 100% on board and every stroller that rides pass me I hope it'll be me soon but I just can't seem to get pregnant. Every opt I've taken was negative and pregnancy test. I jist want our baby now.