Hallow Dear,
After first incidence of your intercourse with withdrawal method you got menses; so you are not pregnant due to that incidence of intercourse.
However, withdrawal method is not a safe and reliable method of
contraception. Before actual ejaculation of semen, some pre-ejaculation secretions (precum) are deposited in vagina unknowingly. Precum does contain some sperms which are capable of fertilizing the egg. So please get your
pregnancy confirmed by:
1. Pregnancy test on overnight morning first urine sample a week after missed period (if you miss it); earlier the test may report false negative.
2. Alternatively you may opt for
Beta hCG test on your blood 10 days after the last
unprotected intercourse.
Your symptoms of low back ache with increased
vaginal discharge could be due to:
1. You are having incomplete sex. Unsatisfied sexual desire does cause pelvic congestion resulting into back ache with increased vaginal discharge. Please use reliable method of contraception like condom,
intrauterine device or birth control pills and enjoy the sex to the fullest. This will reduce these symptoms. Your mood changes and irritability also can be attributed to unsatisfied sexual urge.
2. You could have contacted some infection (may be Sexually Transmitted Infection) which could have resulted into swelling on the mouth of the uterus which leads to low back ache with increased discharge. Antibiotics and/or cervical
cauterization can give you relief. Please report to your Gynaecologist.
I hope this should provide you guidelines.
Dr. Nishikant Shrotri