I am unsure what my cycle is like when I’m not on the pill, but I am on day 33 with no period?

Hi. I have recently stopped taking my birth control in hopes of trying to conceive. I had been on the pill for about 8.5 years. I stopped taking my pill at the end of my last packet which was one month ago.

I have yet to start my next period. I am unsure what my cycle is like when I’m not on the pill, but I am on day 33 with no period. However, another strange thing is that my last period (while on birth control) was very irregular. It was only two days instead of the usual 4-5 and it wasn’t even enough flow to fill a tampon. I would call it spotting more than anything. I thought that I might be pregnant, but I have taken multiple tests and they all have had a negative result.

Should I be concerned that I have not had my period yet and that my last one was so strange?

Age: 26
Female
Medications: None
No
General Information: I am currently experiencing very normal symptoms regarding PMS: cramps, backaches, headaches, and nipple soreness.