TMI, IB or early period?

I’m irregular and got off birth control 4 months ago. Not trying but not preventing! I’m on cycle day 23 and had a little bit of (TMI) light brown discharge. Last period was on time but kind of light. Had a little bit of cramps last night that I just related to needing to use the bathroom. Have had migraines the past couple of days that have made me feel nausea, again I know super early probably nothing but am hosting a bachelorette party this weekend! Any advice would be great😊 TIA

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