Help! Not sure what’s going on? Implantation bleeding?

RaeAnne

Hi girls. Husband and I had sex Monday and there was blood during missionary! never happened to me before (period due in 1 week). Thought that was odd! 2 days later i had slight cramping, wiped and there was brown discharge which i thought was my period starting! I went to bed woke up and had 0 bleeding hmmm. Put a tampon in for the gym changed it when i got home and there was a little brown but that’s it. What the heck is going on?