So I’m almost 4 months postpartum, I’m breastfeeding, haven’t gotten my period back yet, and my hubby and I haven’t been using protection because we’re fine with getting pregnant again. I’ve been having some pregnancy symptoms (frequent urination, mild cramping, fatigue, etc) and yesterday I had light spotting and today one time when I wiped it was a little pink. I’m wondering if that was implantation bleeding. If it was, when should I take a test? How soon? Thank you!