TMI (opinions pls)

Joselyn
So yesterday I realized slight bleeding. So I decided when I went out to wear a panty liner and at the end of the day I seen that it looks kind of brown spotting but I don't know if I should be worried or excited. Help pls sorry for the pics but figured it'll help more to see it. Also attached a pic of the cycle from when I was ttc. Don't know if it'll help much but maybe so you can see when  I had my period & finished. The pill icon are prenantals as well. Could this possibly be implantation? I did just have sex again yesterday but I don't feel irritated like he ripped anything ya know. Or do I need a doctor? 
Edit: also if it helps AF is due May 10