No judging please

Ok long story.. no judgement please

I’m a single patent & have an 15 month old girl..

Well her daddy came over and we could a little “busy” 🙈 now I’m pregnant with my 2nd.

How do I explain to UC about this situation. I’m scared they will think I’m scamming the system when I’m really not it was just an one night thing and now has turned into this..