Help!!! Please

🌻sarah🌻 • Wife 👰 mom of 3 amazing boy 🧒👦🧑🎀🤰🏼and finally my princess 👸
I'm so confused Af should have come May 30 but it was 6 days late. Instead it come June 6th. Now today I have light cramping with brownish spotting. Any ideas on what it could be? Also I had sex the day before af and 2 days after..