So last month I had unprotected sex during my ovulation days and 2 weeks after that I had tingling breasts, feeling nauseous (sick like), and was tasting throw up in my mouth but never thrown up. My period was supposed to come December 22nd but didn’t come until December 24th and ended December 26th or December 27th. I’ve been taking pregnancy tests but each one all said negative and far as my cycle for them 3-4 days (Dec 24th-Dec 26th or 27th), I was having light bleeding and it was changing from light pink to red to brown then kept switching back from light pink to red then brown. I’m not sure if it was my actual cycle or implantation bleeding and I have low energy and sleep more den usual so could I be pregnant? My docs appointment not until January 11th