Confused

So had my paragard taken out April 29, have sex about everyday or at least every other day to be sure lol. May 2nd 5 days before my period was due I started spotting, spotted 2 days, bleed (lite) 3, spotted another 2.. Not normal for me bc it has been so heavy with the iud. So again sex about everyday. June 1st I spotted but not enough to even have a pad on (this is also the time all the apps say I should start my period) I spotted for 5 days only when using the bathroom, never having to wear a pad (even had sex twice and it never made me bleed more). All color was light pink. No cramps or anything. Have taken a few hpt. Nothing but negs.. When would be a good day to test again? Or should I even test? I am so confused about it. If it was implantation how long could it take to show up?