Any Advice or Opinions Would Help <3

Me and my husband have been trying to conceive. But, my periods have been seriously irregular. May - July was 43 cycle days. July to August was 51 cycle days. September to September was 28 cycle days. & September to October was 32 cycle days. My last period was October 30th to November 4th.

I have no idea why it's been irregular because before may it was regular.

In the July - August 51 cycle day, I took multiple tests and some were faint positives some were negative. Any advice on what to do or opinions on what you think is causing this would be greatly appreciated <3