TMI LATE PERIOD

Hanna • Married 6-9-17 TTC #1 💙❤️
Sooo my period is over a week late tests are negative no spotting or anything until now. I've never been a person to spot before hand so it's odd for me. Just got married so... obviously we've been bd'ing constantly. My CM has been creamy white lately but last week totaly dry. Plus the past 3 days I've had cramps in my ovaries back and forth. Anyway this is implantation bleeding?