also she would have to wait until her next period to test as it takes a while for hcg hormones to build up.
even if she was pregnant she wouldn't be gaining weight already. Gaining weight or stress can delay her period.
Oh okay & yes she did have it around her period was due & she did gain 5pounds
it also depends on if she had sex when she was ovulating. Each month every woman has a 20% chance of conceiving. Now as for the spotting did she have it around the time her period was due? has she been under any stress, lost or gained weight recently?