Strange 8DPO Pains

CoCo

Two days ago I was in bed with what felt like PMS cramps. I was 8DPO. At first I was convinced that this was just another epic fail considering it is normal for me to start PMSing as early as 10 days before AF these days. But as I lie there with these awful cramps (felt like the cramps I feel much closer to AF, not this early), sharp shooting pains hit my lower abdomen off and on, only on the left side. This has not happened during my previous cycles. Not sure how long this went on as I was really trying to get some sleep. Fast forward to now. I’m 10DPO and only feeling dull achy cramps. How did I go from experiencing those terrible sharp pains at 8DPO to a dull ache two days later? My cramps tend to get worse as I approach AF , not better. Has anyone ever felt this and turned out to be pregnant? I’m trying to remain hopeful.