2 months late on my period!

I'm currently 2 months late on my period. I've taken pregnancy test but all were negative. At first I really wasn't concerned about it knowing that this is a frequent thing with my body, due to when I was in 9th grade my doctor told me I had an 3cm ovarian cyst & it would cause irregular periods. I've made an appointment for Friday (Oct 10,2014) to get blood drawn because Saturday I started feeling very ill. Vomiting, dizziness & felt like I was going to pass out at any moment. I just pray that the test comes back positive because my husband & I been TTC for 2 years now! Fingers crossed!!!