Hi, I was just wondering if someone can help. Me and my fiancé are trying for a baby (very early stages). In the past I have had very irregular periods. I had the implant for about 2 years and during this time only had about 2 or 3 very light periods. i have had it removed for about 5 days and was told that you are able to conceive straight away. If this was case and I was lucky enough to fall pregnant before I had another period, how would they work out the due date? Thanks