Not sure

So my husband and I have been trying since last November, I am trying my best to be positive but it is difficult when both my sister in laws are having their daughter just a month apart. I'm happy to be an aunt but I really want to be a mom. Well we tried on my most fertile days according to my ovulation tests. I am work today and I notice some light bleeding and I'm thinking that it is my period which is coming early or should i think that this is my silver lining??