Confused

Heather
So I had started back on the lowest dose of Birth control pill after having my baby, that way I could continue to breastfeed. Since starting back on it I haven't had a period and every day <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> asks me if I've started my period. I check no, because I haven't. Should I check yes & just put the start date as what it was supposed to be...