I havent started my period but i had unprotected sex but he didnt ejected in me i also took a plan b. i have little cramps here and there should i be worried?

If you have passed three days before the expected period you can do the urine pregnancy test. However, taking plan B may delay your period as well. You should practice safe sex for avoiding pregnancy at your age as well as STDs.

Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully.

First of all unprotected sexual intercourse even without the mam ejaculating is not safe and one should use another kind of contracetivr to prevent pregnancy.Plan be if taken within72 hours after sex is only87%effective.If taken within 24 hours it is more effective but not 100%.And it should not be used for contraception.Do a home pregnacy test if you missed period.Future use proper conteaception