need help!

Lauren
Hey guys! 

So I need some opinions! I had my period may 4-9, then my husband and I had unprotected sex on the 10,11,12,and 13. We had sex 3 times each day and each time he did finish in me. Then on the night of the 14th I was having uncomfortable cramping in my lower right stomach, and my lower right back. Then the morning of the 15th I went to the bathroom and when I wiped there was a very light pink discharge but there was none In my urine. When I looked it up the only thing I could find was implantation spotting. That was the only thing that was matching it. I have never had spotting before so it is very strange for me to have that. I'm just trying to figure out what everyone thinks. If y'all think maybe I'm prego or what's going on! I'm not supposed to get my period for another 2.5/3 weeks so I'm very curious. I took a pregnancy test a it came back negative but it could just be too early... please help y'all. Please tell me what y'all think. Thank you guys 💕