Hallow Dear,
After the last sex on 27th, you had your periods. So you are not pregnant. Moreover, all your sexual relations were with condom protection. So you need not worry about
pregnancy. However, if you want to have endorsement by some test (other than home test), you may opt for
Beta hCG test on blood. This test gives reliable reports if performed 10 days after the last
unprotected intercourse. In non-pregnant state, the values are less than 5 mIU/ml while values above 25 mIU/ml are diagnostic of pregnancy.
Madam, I-pill is
Plan B emergency post coital
contraceptive pill. It should be used only in occasional emergency situation. It has to be consumed within 72 hours of unprotected sex. Its routine use after each intercourse is not recommended.
For routine
contraception, you may opt for contraceptive pills. They are very reliable method of contraception having almost nil (less than 0.1%) failure rate. These pills should be taken only with Gynaecologist's advice and prescription. These pills do not have any ill effect on future pregnancies.
Alternatively, you may get
intrauterine device inserted which will offer you protection against pregnancy for years to follow.
Condom also is a very effective reliable method of contraception.
If you want to defer your pregnancy for some time, please adopt one (or more) of the above mentioned reliable contraceptive methods. Too frequent use of Plan B contraception is not advisable.
I hope this provides you the required guidance.
Dr. Nishikant Shrotri