Implantation bleeding after #2iui

Nikki

I had my #2 <a href="https://glowing.com/glow-fertility-program">iui</a> on cd12 and today I’m cd24 and I’ve had lower back and pelvic cramps which haven’t been painful, then I’ve wiped a few time today and this is what I get. It also seems a bit watery and egg white like. I’m never this early on my period which is usually 28-31 days. Could it be implantation bleeding and when can I take a test?