So I got my iud put in about a month ago, and I had bleeding right afterwards which is normal of course, but the bleeding happened right before my period, and then my period came (I think) so I'm not sure if it was bleeding from my iud, or my period (it was heavy) and I kind of brushed it off thinking it was probably my period. The next month comes around and my spotting has completely stopped, and when my period is supposed to come the spotting started again but I never got my usual flow, just extremely light bleeding for a couple days, should I be concerned that I might be pregnant? I'm using skyla by the way