Period-like cramps before a BFP?

Has anyone gotten period-like cramps before getting their BFP? AF is supposed to start either Saturday or Sunday (2 to 3 days away) and ever since this past Tuesday, I have had cramps like she was about to show up. This is strange for me because I usually only get cramps the day AF starts and I keep expecting her to start but nothing. This has been going on for 3 days now and the cramps feel different yet period-like at the same time. My boobs have been hurting more than usual as well. I am 9 DPO and just curious to get any insight on this. I feel like I'm on the verge of tears because I just don't want AF to show up. I'm so ready to be a mom. Thanks in advance for any help on this subject!