LARC

I've been on the DEPO shot for years, then I switched to the i.u.d method on October 23, 2020 but then got it removed a few months later. I started the DEPO shot again on June 28, 2021 then had unprotected sex several times after, could I be pregnant?

If you went from one method to another you would be protected against pregnancy. 

If you restarted depo after not being on anything then you need to wait 7 days for pregnancy protection.

He finished inside me 3 times over that weekend does that increase the risk and do I need to take plan B after he finishes inside if I'm on Nexplanon? (I was on the Depo shot for I would say almost a year and I switched to Nexplanon and I've been on it for two years and two months and I haven't had my period for years now and my boyfriend finished inside but Nexplanon is 99% effective so am I at risk for pregnancy?)

Nexplanon is effective at preventing pregnancy every time you have sex.

I was on the Depo shot for I would say almost a year and I switched to Nexplanon and I've been on it for two years and two months and I haven't had my period for years now and my boyfriend finished inside but Nexplanon is 99% effective so am I at risk for pregnancy?
You are still protected against pregnancy with Nexplanon if you've only had it for two years. If you have any concerns you can take a home pregnancy test. 

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