Bad cramps

Aubrey • 25, married 06/2013, baby girl born 09/2017, Baby #2 due May 4, 2020 💕
I've had my Nexplanon for a month now and I've had a lot of problems with it. First I have random spotting and light bleeding (which I know is common), I've had a really weird clot thing come out, and now I have bad cramps that don't even get better with Midol or Pamprin....I'm so tired of being in pain...has anyone else had this problem? How can I help these cramps go away or at least not be so painful...?