Brown discharge

Hi I am 12 days post of ovulation and got a positive Pregnancy test at 9dpo and every day since on the little Internet test strips and also yesterday on a clear blue digital but last night when I wiped I noticed a tiny bit of brown discharge and again this morning. Normally this happens to me two days before my period and now I’m wondering is this a sign the baby is not sticking? 💔 I’m so nervous to get my period on Friday. what do you guys think is it normal in early pregnancy? I didn’t have it on my first two, has anyone experienced this and went on to have a healthy pregnancy?