advice?

So my husband and I have been trying for a baby. We had a still born in February and have tried since to have another. We finally gave up and are basically at the "if it happens it happens" stage. I was suppose to start 3 days ago and have yet to start. The last two months I've been anywhere from 1 day to 4 days late because of stress from my wedding in September. I've also felt sick all day today and when I laid down I felt like I was going to vomit. Could I still be stressed out from it? Should I wait a little longer and test?