Help with fleas!!!

Hanah 🇬🇧

Can never seem to get rid of them its driving me crazy! I've got flea bites all over me, find at least 5 fleas on me every day i must have tastey blood because i always get bitten by something and my partner and daughter doesn't! Im currently 26 weeks pregnant and not sure what's best to use because of fumes?! I have cats, they are always deflead when needed! Cant take the itching any longer its keeping me up at night 😭😭😭, currently trying the tea light candle in a dish of soapy water! im in the UK for any products recommended thanks in advance!!