Post Molar / PMP advice??

I found out I had a partial molar pregnancy in January of this year - such an awful experience (mainly due to the incapabilities of the hospital). I was referred to Charing Cross who finally discharged me when my HCG was negative at the end of March.

Husband and I found out I was pregnant a week ago at 3+3, I’m now 4+3 and have been testing daily to see if my tests have been getting darker...they have. Not content with that however, I bought a Clearblue with conception indicator to tell me how far along I am. Today’s test gave me a 3weeks+ result which, according to the instructions, puts me over 5 weeks.

Rapidly increasing HCG is a sign of molar pregnancy. The chances of having another are very slim however, should I be worried that my HCG levels seem to be rising quickly?