4 months pregnant with first baby (cramping?..)

Hii soo since this is my first pregnancy sometimes things can be really scary, stressing and overwhelming… I’ve been having mild cramps ( which I sometimes get but not most of the day) during most of the day today (not hurting at all just kinda annoying and with no blood) when should I be concerned about those or should I be concerned ? Everything is so new and I don’t know whats normal or shouldn’t be I know they say listen to your gut feeling and it tells me it’s probably nothing but at the same time this being my first pregnancy, anxiety just sometimes gets over and I just need to be reassured.