I am 19 days late on my period and I have never been THIS late

I thought I put weight on and thought nothing of it however I’ve realised normally when I put weight on, it’s over my whole body. I seem to have only put weight on my stomach area, almost as if I’m bloated.

I took a pregnancy test when I was 7 days late and haven’t taken one since and it was NEGATIVE.

I am on birth control however I have never skipped a period or had such a delayed period like this on birth control before. Normally I’m the opposite and bleed more regularly and often.

I’ve had no PMS signs apart from being hormonal here and there and tiredness. Normally I get sore breasts a week before my period and I have no had sore breasts since before my last period.

What should I do next? Take another test or just call the doctor? I have been stressed lately so I’m unsure if this is a factor