Hello, first post so hope I'm doing this right. I am a little concerned but have no way of getting a test til tomorrow so looking for advice and reassurance.
I am 27, I have 2 sons aged 8 and 3. I was diagnosed in July 2014 with endometriosis. I had a coil fitted the day I was diagnosed via laparoscopy. Gradually my periods became more regulated and by July 2015 they where regular and very mild. Since July I have consistently started my period between the 8th and 10th of the month and the bleeding has been very light and lasted only a day (a very pleasent change to the constant heavy bleeding before my diagnosis!). I had my regular period in December (the 8th-9th) as usual then a very random heavy bleed on the 15th of that month, and nothing at all since. I thought nothing of it until Friday when I realised I was was nearly 2 weeks late and was experiencing a little sickness and mildly tender breasts. I've spent all last night and this morning in extreme pain on my right side, with odd shoulder pain too. The pain is slightly reminiscent of the pain I had while suffering a miscarriage in early 2012 but I have had no bleeding whatsoever.
Is it possible to start missing periods after this long with the coil (mirena) or could I be pregnant and there are complications because of the coil? Any help or advice would be appreciated so much!