Confused

Okay so my periods have always been slightly irregular. However my last period was 10th - 12th August! My periods normally last between 5-7 days. <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> is telling me that I am on day 75 if my cycle! 😖I am sexually active however we always use condoms and we fill it with water afterwardsand squeeze them to make sure that they didn’t break. (Can never be too careful 😂) I have taken three pregnancy tests spaced out in the last two months and they all came up negative. I am anemic and I know that it messes with my periods, not this badly though. I am not underweight or overweight so that isn’t a factor. Also I have already gone to the doctors and they did a pregnancy test which surprise surprise came up negative. Since they have told me to wait it out until I get my next period. I just wanted to post to see if anyone else has ever had a period delay this much.