Is this serious

So I’ve always had a regular period whether I’m on or off of birth control, I’m currently not on birth control and haven’t had a period since February 5th (and I’m definitely not pregnant I’ve taken 6 or 7 tests over the past few months). I haven’t been stressed or anything like that. Ive done lots of research on the internet and it’s really scaring me lol I called 811 to see if it’s necessary to see my doctor, and the nurse on the phone asked me a series of questions and said yes to contact my dr. so I’m going to call tomorrow

Has anyone dealt with this? I had my first baby in June of 2019 but have had regular periods since having him, this is just all of a sudden, I’m hoping this isn’t going to be the start of fertility issues in the future.