Hey ladies! So I came off my birth control in May due to a pituitary tumor finding.  So tracking my periods are pretty close to impossible. Anyway. Me and my SO are TTC and we had sex on the days I was ovulating ( knew this by the discharge). We had sex 11 days ago. And a few days Inbetween now and then.  Well this morning I was going to take a test and when I wiped I noticed a small amount of blood and haven't bleed the rest of the day. I have slight cramping and my test came back negative.  So my question is. Could this be implantation bleeding? And when should I retest?