Is this normal? ( early pregnancy )

My conception date is April 6th 14 days later around the 22nd I started having a brownish dishcharge or old blood type of leakage very light. I thought this was implantation bleeding. I took 3 tests on May 1st all pregnant but the brownish light leaking is still happening every day and again very light but now I’m worried. Is it normal to have brownish light dishcharge/bleeding for up to a week after finding positive pregnancy?

Any information will be helpful and I know I need to schedule an appointment but this is all pretty new to me.

Also a side note I took plan B the day after conception and tho it says it won’t harm the pregnancy and even tho I wasn’t planing on this me and my partner want to do everything for a healthy baby now. Any thoughts/advise?