Welcome to HCM
Since you have irregular menstrual cycle, forgot to take pills and had protected sex with condoms, your chance of getting pregnant is very slim, unless the condom failed due to rupture or any other cause. If you get your periods fine, but if you do not you should repeat a pregnancy
test with the early morning mid stream sample of your urine.
can be due to hormonal
imbalance, low hemoglobin
per centage in your blood, ovarian cysts, etc. You should visit a doc and get clinically assessed. You may need HRT or some other treatment depending upon the diagnosis made. You should get USG done if required.
Avoid stress, addictions, maintain BMI, exercise regularly and take nutritious food. Take vitamin and iron supplements
. Take care.