Pms or early pregnancy ?

Period is in 7 days ... the last two weeks I’ve been having horrible headaches,mild cramping , sciatica pain/lower back pain,bloating,very tender breast and cannot sleep comfortably due to breast or bloating😫😫😫 last period 1/19 I had sex both 1/21&1/22 he did finish in me right after my period. Also my periods are short 3days