Possible Implantation Bleeding & Early Pregnancy Symptoms: What to Do

Implantation bleeding or spotting can occur 10-14 days after conception, although in some cases it can happen later.

However, your other symptoms - nausea, vomiting and sore breasts - do not usually develop until 4-6 weeks after fertilization.

Given the potential overlap in timing, a positive pregnancy test is advised as soon as possible so that you have a definitive answer regarding your pregnancy status.