Hi y'all... first month using the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a>. Recently had my IUD removed. I'm currently 3 days late for my period and 15 dpo. I'm been having weird things happen like cramping after orgasm, waking up with leg cramps at night and sore breast. All of which can be early signs according to google. But I don't want to get my hopes up. ANYWAYS, all of my cheaply bought pregnancy strips come back negative. Not even vvfl. Any advice? Should I buy a first response? How long should I wait?