Implantation? Period

Alexa • 🇹🇹 🇺🇸 Single mama. Luke has my heart ♥️

Hey all

I've been ttc for about 4 months.. last month my period came around CD20. I'm currently on cycle day 18 and I have light cramps and my nipples hurt a bit. Could this be a sign of implantation maybe? I would hate for this to be period symptoms... I've spoken to my friend who has a young daughter and she said to not give up as period and pregnancy symptoms can be similar. Any insight?