Did 2 hpt 12 dpo and 13 dpo and they both turned out positive but the test lines were very faint . should i worry ? (had 2 misscariages before )

Time and technique: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about two weeks for the embryo to make enough HCG to produce 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. Please seek care from a doctor to protect your and your baby's health.