is it possible to get pregnant after both a tubial ligation and an ablation ???

Hi i am a 29 year old who 6 months ago had both my tubes tied and an ablation i have still had my period every month since i did this and have in recent months lost a lot of weight and have been feeling sick with everything i do and eat for a few weeeks now i have very tender breasts as well and am concerned about being or falling pregnant agin i have 3 beautiful girls my youngest being 6 and my elsest being 12 but made my choice due to the trauma of losing babies hand over fist with my last partner , my new partner would love me to have a baby but i am very worried about the health risks to both me and any potientail baby who do i speak with about this as my gp is no help here at all and neither is my rn do i need to try and get hold of a specialist ?? any ideas or help here would be great