Your breasts during early pregnancy may feel sore, sensitive, or tender to the touch. They may also feel fuller and heavier. This tenderness and swelling will usually happen one to two weeks after you conceive, and it can last for a while as your progesterone levels rise due to your pregnancy. Be rest assured things will get better. Pele dear! To be a mom isn't easy. We dey try abeg!

Was the test a Urine Test or Blood test?

Normally If you've had a baby before, YOu may start feeling baby movement from 16 weeks but as a first-time mom, It may now start until between 18 weeks and 20 weeks. There's no set number of times that you should feel your baby move. So don't worry if you aren't feeling much yet. You'll soon get to know what's normal for your baby. The initial fluttering feelings are very subtle and can be missed if you're a busy, active person.

I think you should see a doctor asap.
Also, I think this weather is bad and maybe carrying wipes with you in the bag, and make sure to clean your hands before eating.