TMI!!! Is this the start of my first period??

My son is a 14 weeks and I still haven’t got my period, we breast feed but only occasionally. He gets formula regularly. I haven’t had any type of bleeding or anything. My husband and I had sex last night and today after peeing I got this.....(it was very stringy and almost rubbery feeling)

Nothing else since this came out. Just wondering if this is how anyone’s else’s first period (after baby) started. Thanks! I’m

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