Has anyone ever gotten pregnant and went by their <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> estimation but when they went to the doctor's they we measuring smaller? Idk if im making sense, ok so according to the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> im 6 weeks and i went to the doctor because i spotted for one day and freaked out because ive had 5 miscarriages already. The doctor told me he sees a gestational sac but that i look about 4-5 weeks. I have PCOS and my cycle are long sometimes could it be i ovulated later then i thought and that's why im smaller?