newbie here on cd1!!!

So I'm new here but have become addicted. I just had my IUD taken out on the 1st. I haven't had a period in like 2 years because of the birth control but today I started my period!!!! I know it sounds weird to be excited over that but my husband and I want to have a baby. We already have three beautiful angels and we never really tired before. we just decided to have a baby and a month or 2 later we were pregnant. idk why ive been scared this time will be different. So Ive also never tracked my periods before. So though I might not know exactly when I'm ovulating yet I'm getting closer to narrowing it down!!!!