Am I or am I not??

My periods are so wonky that it is making it hard for me to conceive. I’m 34 with two beautiful children, almost 8 and a three year old. Time really does fly! So my dilemma is that I started my period August 2nd. I should have ovulated on the 20th according to the Glow, but I had not, had my serge yet... So I keep testing to see if I will even have one. On the 26th I finally has a serge! All my body signs were pointing that I am ovulating!!!! On the 3rd of this month two days ago I should have started my period, but today is the 5 and I have no signs that I am even going to start soon... My husband and I are really wanting to have one more Teeter Tot! We have been trying for almost 8 months now😞. So I took a PG test yesterday morning and the test was negative. So don’t really when my next period will start since my serge was 6 days after from when I should have started. So how do I know how long to wait till I take another PG test? And it could be just of the amount of stress I’m under as to why I have not start my period yes.... the day after Easter my sister in-law was murdered! The Tuesday after Father’s Day I lost my job... and two weeks later my husband went to the ER with kidney stones and they did an MRI and discovered that he had a tumor inside his kidney the size of a tennis ball. So we had to wait a month and a half before he had the surgery to remove the kidney. Today is his one week follow up, we hope to find out the biopsy results. The Dr./surgeon said that it is 77% chance that it is malignant! So yes all this stress is messing with my head and most likely my period. But we want this baby so bad!