Sore breasts , nausea , cramps

Changing birth control can cause hormonal symptoms. Hormonal symptoms being unusual period/bleeding, sore breasts, etc.

If these symptoms are at all related to pregnancy, a positive pregnancy test would be easy to come by. AKA, the same pregnancy hormones cause positive pregnancy tests that cause pregnancy symptoms! Pregnancy symptoms are not indicative of pregnancy because they can be caused by various other hormonal issues - pms, birth control pills, etc.

You are 5-6 years OLDER than you were when you first started taking birth control. Which means your body is different and you will not experience the exact same things you experienced before. As we age, our cycles change and so do our bodies. Don't assume your experience will always be the same on any kind of medication.

If this only happened a few weeks ago (risk of pregnancy), you are far too early for this onset of symptoms. Unless you think you got pregnant last month, in which case, a pregnancy test would be accurate now. Drinking on the weekend has NO affect on the efficacy of pregnancy tests and won't cause a 'false negative'. Testing too early or inaccurately is the only thing that would cause a 'false negative', not anything you eat or drink.

Take a test when your period is due or, better yet, late. Follow the directions on the test. It usually takes approximately 10-14 days AFTER conception to get a positive test. On birth control pills, your ovulation is suppressed. Take a test when you miss your period.

Good luck!