My last period was on 17th january and i had protected sex on 5th february.i am late for my periods by 3 days. should i take up a pregnancy test?

Stress or emotional problems can cause a period to be late. Wait another week to see if period comes. Get tested if any symptoms arise. Are you sure you had protected sex? You seem very worried.

Yes. 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.