Hello, I am 20yr old girl. My exact ovulation was on April 23, I did have unprotected sex that time, with a pull out method. Yesterday May 9 was suppose to be my period date but I am now late. I noticed a brownish and pinkish spot on April 30 to May 1 and got heavier bleeding until May 6. The bleeding was thin blood with a smell of a wound blood, color red to black without any clots. Could that be implantation bleeding? I know its not my period because it differs from the blood. And i am now 1 day late without pregnancy symptoms and PMS symptoms too. When can I use a
pregnancy test to have an accurate result? Thanks for your help!