Advice please

Karen
Hey all! I was hoping you all could give me some advice/insite.. First let me start by saying that my cycles are irregular. They are usuall around 25-30 days with the longest one being 33 days.. Well I am currently on cycle day 36 and still no AF. I haven't been using birth control for the last 8 months. I haven't tested yet because I feel like I always think I might be pregnant and I don't want to see another negative test and feel stupid.. So here are my symptoms; last week I had some cramps and fatigue, but I just thought it was pms..this week I have had more cramps, I'm still tired, I've had some thick white cm and my sex drive has been through the roof! That is definitely new for me lol. I've never been pregnant before so I don't know what to compare it to.. What do you all think? Has this happened to you? Do you think I should test or wait a little bit longer? Any advice will be appreciated! Thank you!