So I had my hsg on cd8 and I’m currently 5do and I’ve had dull cramping since 3dpo and been very irritable and being having mood swings like crazy I know it’s too soon to be pregnant but what could this be anyone experience this and gotten a bfp

I know I’m not ovulating now because I thought it might have been ovulation cramps like I ovulated late or something but my lh was negative

Need people’s advice and experiences