Hello. I am 2o years old I am trying to conceive. I actually tried for 4 months and I conceived. But it turned out to b chemical pregnancy. I had and ultra scan of pelvis and everything was cleared. But eventually after 20 - 21 days on 11 January I had brown discharge light in quantity for 2 days and my period started but this tym it stayed longer (5 days heavy) and 6th no bleeding at all. So my next due date stands to b 13 FEB as I have 30 days cycle but in between on 28 th of jan I had 2 three drops of blood which I thought as ovulation spotting and continued to have and before that spotting also I had sex. So that I could conceive but now on 18 of January I got period (5 days late. With clear red blood. My question is why I am not able to conceive. My thyroid report blood report everything is cleared even the pelvis ultrasound shows everything is cleared. How long it will take. should I use ovulation prediction kit. Because this month I anyhow wish to get pregnant. Kindly suggest.