Pregnancy?? Paranoid HELP

The last time I had sex was June 8th I'm not on birth control but he used a condom and it did not break.

On the 18th I bled dark brown for a week (June 18-23).

Since yesterday I have wiped myself and found brownish discharge. I'm ovulating according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>, but I'm wondering whether or not this is ovulation blood, old period blood, or implantation bleeding. I've been having some symptoms but I dont know if I'm just psyching myself out.

My next period is expected on July 19th.

Help, what do I do? Is it too early to tell if I do a pregnancy test this Thursday (July 7th)?