Missed period but negative/faint tests

Not sure what’s going on I was suppose to be getting my period on the 8th. Currently trying to have a child with my bf. I am now a week late. We have had 3 very faint line tests, and two negatives. I did blood test as well it came back negative. My dr says I have take another test in two weeks to see if I’m pregnant and says I may have not produced an egg. I’m confused I have yet to start my period. No cramps no sickness or spotting.