At Home Pregnancy Test Blues

Jessica
So, I'm 31 and this is only my third month TTC. I'm a week late and have been off the pill for three months. My last two cycles were regular and AF came on the 29th day. I am on day 36 now, still no AF. I had a false positive from a bad batch box of easy@home tests a few days ago. I took a test from a different box and it was negative. So I decided to wait a few days and took a Clearblue digital test this morning. It gave me an error message. I am so upset because I did everything the instructions told me to...held my pee all night, peed in a cup, held the stick down in the cup for 20 seconds, then capped it and laid it flat. I feel so helpless and just want an answer either way...like I just want a for real positive or AF to come!! I don't know what my next step should be. Any advice, or similar experiences?? None of my friends are TTC right now and I feel like I have no one to turn to. 🙁