In depth thinking has me wondering ..... need advice

Ok guys, as I have mentioned before I have actively been ttc for 9 cycles now. One month I had a period twice so it’s been 8 months total. My hubby and I have been married for 6 years and relied on the pull out method, no birth control etc. Never been pregnant or thought I could be. Ttc I know can take time, but I expected it to happen by now, like most women. But the more I think about it, I get worried knowing I have done the pull out method for over 5 years and never gotten pregnant. Is that normal? I hear about failed pull out methods all the time. I know people typically wait a year ttc before seeking professional help, but now I’m wondering if we should go before the year mark. What do you girls think? Am I over thinking right now? Feeling anxiety right now:(