should have got the longerlites 42 watts.
but never mind, you could start 4 plants under the lites you have, grow more than 1 incase its female.
you could use the lights you have for 4 weeks, then youll need 5 more lights,
but if i was you id use flo's for vegg and get a 250 hps for 12/12.
if you dont get more light, after 4 weeks, and you try to flower, with just the flo's you have.
they wort really grow any bud, at all really.
so get more lites.
how old is your plant?.