So I Recently Just Had My Implanon Bar Removed On

So I recently just had my implanon bar removed on the 07/09 due to having long periods because of it and having to be on primulut tablets for the past month and a half to stop them. The doctor I saw prescribed me the micronelle 30 pill. I was told to start my pill on the first day of my period. On the 10/09 I had light spotting of period so I took my first pill (active pill) and my period immediately stopped. On the 14/09 (4 days later) I forgot to take my pill and me and my boyfriend had unprotected sex and he finished inside of me. I know we were both very un careful but its happened now. What are the chances that I could be pregnant? My partner and I have only been todather for about 6 and a half months and we are not in the right position to have a baby right now.