Post-Ovulation Spotting: Causes and Treatment

HCG levels of 3.5 means you are not pregnant. The normal range for HCG for non-pregnant ladies is usually less than 5 mlU/ml. If you have seen some unusual symptoms, you should see a gynecologist for a proper evaluation and consultation.
 

It could be due to early pregnancy, hormonal imbalances, medications or medical conditions, or stress.. Talk to a specialist for an accurate diagnosis and appropriate treatment and to determine their underlying cause.

In my opinion, you need to consult a gynecologist for detailed diagnosis. Breast pain on the left side may arise from different sources such as breast infection, injury and inflammation. Prompt diagnosis and treatment is necessary to prevent any complications. If you have any concerns, do not hesitate to see a doctor.

It's common to miss periods.. Stress, illness, medications cause changes. Take a PREGNANCY test. False negatives occur if done too early. If it's negative, wait a week and test again. If still negative see a doctor..

Taking Ella one within 120 hours after unprotected sex reduces pregnancy risk . Ejaculating outside also reduces pregnancy risk . However , there is still a chance of pregnancy. Emergency contraceptives are not 100% effective. Use condoms for STI prevention. 

This indicates that both of your fallopian tubes are open and functioning properly. This is a positive result as it suggests that there are no blockages or obstructions in your fallopian tubes that could interfere with fertility or conception. It increases the chances of successful natural conception and may be reassuring if you are trying to conceive.

I suggest you to not  just rely on home pregnancy tests. Please visit a gynecologist instead. The gynecologist will ask you to undergo certain blood tests to check whether you are pregnant or not.  Some other reliable methods can also be used to check if you are pregnant. Hope this proved helpful.