Late or skipped

I am either a week late, or I have skipped a period. I'm not quite sure because I didn't start a new set of BC this month. My husband and I are TTC(very recent). I have only skipped one period ever (besides this one) since I was 11. I think I'm technically on CD 35 I think, when I'm almost always 28-30 days even before BC. Help!? I'm so confused. This is making tracking my cycle no fun. (Not pregnant. I already checked)