No side effects. I took oral daily and also jab 2x weekly for first trimester. Maybe just more water retention? It's just hormones like the ones ur body have. U have even come to the stage of bad cramps n Gyne recommended so so I think u should go for it and not waste time reading abt other pple' opinions and experiences because "other pple" are most likely not doctors and don't know ur medical profile.
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