Period. 7 weeks

I breast feed my son and pump for some "emergency" bottles when we're out or dad wants to feed him. But I'm worried with relatives here for the last week I used more bottles than normal and now I'm afraid my period is starting! I'm not ready! I was almost banking on not having it till he starts solid foods. Will my period affect my milk supply? Lately I've been having a hard time getting anything when I pump but baby seems to get enough. We don't use pacifiers and he pretty much eats/comfort nurses all day when we're home. I'm really bummed and a little worried!