Think I'm 6dpo advice needed

L

Hey so it's a week today af is due (15th) and I'm not really having as much 'symptoms ' as I thought I've had in previous months lol. Tho last night after sex I had period like cramps in my lower stomach and this morning I've a pain I can't even describe near my bellybutton! Never experienced this before. Is it a sign of early pregnancy? has anyone experienced this on their tww and later found out there were pregnant?

Thanks ladies x