Wondering

So my period came on June 1 and my husband and I had sex on June 2...of course he didn't pull out he never does. ..but anyway. My period calender said my cycle wasn't due again until July 2 but it came 2 weeks early on June 20.....like normal....heavy as usual cramping the whole 9...so my husband says Google is my worst enemy but it said that the lining in my uterus was thinning blah blah blah....but then one post said I could be pregnant like implantation bleeding..but that would be light right??? Should I take a test??? I don't want to be disappointed....what do u guys think????