Experiencing heavy flow approximately once every three weeks can be a result of a multitude of reasons and may include hormonal imbalances, thyroid problems, stress, or even PCOS. I advise a comprehensive examination and correct diagnosis from a gynecologist.

Heavy bleeding in early pregnancy could be alarming and may mean a miscarriage or an ectopic pregnancy. Be sure to visit the gynecologist for the necessary evaluation and management so to get the right care.

Spotting or irregular bleeding might have started. It can result from the impact of varied causes including hormone levels, stress or infection. You should consult a gynecologist, who will further confirm the diagnosis and implement an appropriate treatment plan.

Encountering this stomach pain after a sexual intercourse is an indication of different underlying medical conditions which may include pelvic inflammatory disease, endometriosis and cysts. Instead of self-medication, one should visit a gynecologist to get a full examination done and proper diagnosis.

15 days delayed periods after unprotected intercourse can be a sign of pregnancy or may be some other health issue. Please talk to your gynecologist

It is advised to visit a gynecologist for a thorough check-up and evaluation. Also doctor can prescribe contraceptives to avoid unwanted pregnancy

Many factors including stress or hormonal imbalances may themselves be causing the delay. Please talk to your gynecologist

Please talk to a gynecologist. They can assist with the identification of issues, like irregular menstruation, heavy bleeding, and painful menstruation

A brown spotting might be a sign of implantation bleeding, but it is hard to definitively identify without a medical examination. Please talk to your gynecologist

If you are not planning a pregnancy and you missed your period just after the last cycle of your sexual intercourse, there is a likelihood that you could be pregnant. However, there are also other factors that could be responsible for the menstrual delay like high levels of stress or hormonal imbalances. It would be recommendable to take a pregnancy test and see a gynecologist to get more information 

If you are concerned about your HIV, talk to your partner and use condom. Both you should visit doctor for better understanding of the safe sex concept 

Cramping and empty sac in your ultrasound at this stage is common. But it's important to follow up with your gynecologist to monitor the development of the pregnancy. Make sure to visit your doctor regularly and follow their advice for a healthy pregnancy.

Usually delay in period with sore breast is a symptomp of pregnancy. But certain matters as stress or hormone disorders or even thyroid diseases may result in late periods. Consult with your gynecologist

PCOS is a hormonal disorder in which ovaries produce excess androgens and that cause cyst formation. You didn't exactly mention the problem you are facing. But these common symptoms include irregular periods, weight gain, acne, and infertility. I suggest you consult a gynecologist who will perform a physical exam, recommend tests, and prescribe medication accordingly.

Sometimes the home pregnancy kits show incorrect result. Or may be you have other health conditions. Talk tour gynecologist to confirm