When should I take pregnancy test?

Evy • Pregnant with baby #1 due June 25!

Hi all!

It has been quite an experience these last few weeks. My boyfriend and I have decided to have a baby so this is our first cycle trying. We planned it right and had sex during my fertile period. A few days ago I started bleeding around the time of my expected period so I was really disappointed. However, it has not at all been like my usual periods. The color and the amount is different. I'm wondering if it could be implantation bleeding? It's been going on for about 3 days now. Anyway, when is it best to take the test and find out? Thanks!!!