So annoyed. Need suggestions on ovulation kits

Anne
Well AF showed up today after being two weeks late. I had so many symptoms of pregnancy too! I'm so disappointed! Since I've been off the pill my last few cycles have been out of control! From 28-33-45-41 days! Then it shows up today! Ugh. I've never tried an ovulation test. Does anyone have any suggestions on brands? I assume they all work about the same. Also since I am so irregular do you think I should start on day five of period and just constantly take them? My fiancé wants a baby so bad and I feel like just a disappointment when we think we are pregnant and then we find out differently. :( I'm willing to take whatever steps necessary to make sure we are TTC at the right time. Thank you ladies in advance for any input!