I need advice, PLEASE🥺

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So Idk what’s going on because my body is so irregular and I’m inconsistent with my mini pills (sometimes I’ll catch up on 3 pills at once. Yes it’s not good but my period was irregular even before the pills. Not because of them). But I’ve had my period starting on May 14th. It ended the 21st. But since then I’ve experienced some weird happenings like fluttering in my uterus and I’ve been spotting for several days now. I took a test on the 21st and it was negative. Haven’t had sex since then. So I’m wondering why I keep spotting like this? Should I take another test? Any advice?

UPDATE.

I had another super light period in Early June right after my period ended.. and the flutters were consistent.

After I took two other tests and they didn’t look positive.

The flutters in my uterus area have been inconsistent and haven’t stopped and now I need to pee all the time, not to mention nausea periodically but not consistent, and dull aches in my hips. I don’t believe I have a UTI either as I’m cautious against them. Any thoughts or guidance???