Might Still Be Pregnant Might Not???!!!

Johanna
So I was suppose to get my period this past Monday (12/22/14) and I was late until today this morning. I monitor my cycle like a hawk especially since my husband and I have been trying for the last 2 years. I have read things about implantation bleeding and that it can vary from women to women. Can anybody help please??? I was so excited but now I am feeling a little disappointed. I'm having bleeding with mild cramping. Bleeding is not heavy it's like moderate but not like normal and the cramping is faint and it's in and out not constant like normal. Color is red. So for all the info but if pregnant this will be our first child.