Is heart burn a sign of pregnancy?

I just realized I’m 2 days late for my period. I stopped trying to get pregnant in the fall and got back on the Depo shot. I was only on it for 3 months and it wore off in feb. I haven’t been trying to get pregnant since last year. But this past week I’ve been having horrible heartburn after almost everything I eat, I haven’t been able to fall asleep at night normally and my appetite isn’t high. My period is always normal off and on birth control. So idk what’s up.

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