Could I be pregnant when have had no withdrawal bleed after two weeks and am feeling sick a lot?

There are a few things that could be causing you to feel sick and not induce menstrual bleeding after two weeks. These include:

Pregnancy

If you have had unprotected sex, it's possible that you could be pregnant. Pregnancy can cause a variety of symptoms, including nausea, vomiting, fatigue, and breast tenderness. If you think you might be pregnant, it's important to take a pregnancy test.

Hormonal imbalance

Hormonal imbalances can also cause a variety of symptoms, including nausea, vomiting, and irregular menstrual bleeding. These imbalances can be caused by various underlying health conditions including stress, thyroid issues, and polycystic ovary syndrome (PCOS).

Other medical conditions

Certain medical conditions can also cause nausea and irregular bleeding, such as certain types of cancer, gastrointestinal problems, and urinary tract infections.

If you're concerned about your symptoms, it's important to see a healthcare provider for an accurate diagnosis and treatment.