Feeling guilty

Been ttc over a year. Gave up this cycle and decided not to try or track anything. Wasn't taking prenatal vitamins. Was having alcoholic drinks just about every night with the holidays and everything. Now i got a positive test and I'm feeling guilty about the drinking and not taking vitamins. Also kind of regret not tracking because now I'm not really sure when I ovulated since my cycles can range 30-45 days. So happy to finally see a positive but can't help but feel guilty too.